APX 10-Q 15 May 18 2018 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2018	May 15, 2018
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q1
Trading Symbol	ck0001584423
Entity Registrant Name	APX Group Holdings, Inc.
Entity Central Index Key	1,584,423
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		100

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Current Assets:
Cash and cash equivalents	$ 3,473	$ 3,872
Accounts and notes receivable, net	41,452	40,721
Inventories	109,236	115,222
Prepaid expenses and other current assets	17,155	16,150
Total current assets	171,316	175,965
Property, plant and equipment, net	79,644	78,081
Capitalized contract costs, net	1,008,325	0
Subscriber acquisition costs, net	0	1,308,558
Deferred financing costs, net	2,839	3,099
Intangible assets, net	323,233	377,451
Goodwill	836,300	836,970
Long-term notes receivables and other assets, net	97,638	88,723
Total assets	2,519,295	2,868,847
Current Liabilities:
Accounts payable	76,131	107,347
Accrued payroll and commissions	37,349	57,752
Accrued expenses and other current liabilities	124,344	74,321
Deferred revenue	142,985	88,337
Current portion of capital lease obligations	10,637	10,614
Total current liabilities	391,446	338,371
Notes payable, net	2,761,380	2,760,297
Revolving credit facility	77,000	60,000
Capital lease obligations, net of current portion	11,065	11,089
Deferred revenue, net of current portion	229,978	264,555
Other long-term obligations	61,842	79,020
Deferred income tax liabilities	8,819	9,041
Total liabilities	3,541,530	3,522,373
Commitments and contingencies (See Note 11)
Stockholders’ deficit:
Common stock, $0.01 par value, 100 shares authorized; 100 shares issued and outstanding	0	0
Additional paid-in capital	731,585	732,346
Accumulated deficit	(1,726,540)	(1,358,571)
Accumulated other comprehensive loss	(27,280)	(27,301)
Total stockholders’ deficit	(1,022,235)	(653,526)
Total liabilities and stockholders’ deficit	$ 2,519,295	$ 2,868,847

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (unaudited) (Parenthetical) - $ / shares	Mar. 31, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized (in shares)	100	100
Common stock, issued (in shares)	100	100
Common stock, outstanding (in shares)	100	100

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenues:
Recurring and other revenue	$ 246,597	$ 196,858
Service and other sales revenue	0	5,391
Activation fees	0	3,104
Total revenues	246,597	205,353
Costs and expenses:
Operating expenses (exclusive of depreciation and amortization shown separately below)	83,760	71,352
Selling expenses (exclusive of amortization of deferred commissions of $38,303 and $19,235, respectively, which are included in depreciation and amortization shown separately below)	59,243	34,798
General and administrative expenses	50,967	38,861
Depreciation and amortization	124,258	76,869
Total costs and expenses	318,228	221,880
Loss from operations	(71,631)	(16,527)
Other expenses (income):
Interest expense	58,790	53,681
Interest income	(31)	(57)
Other (income) loss, net	(45,240)	12,066
Loss before income taxes	(85,150)	(82,217)
Income tax (benefit) expense	(433)	419
Net loss	$ (84,717)	$ (82,636)

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Operations(unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Income Statement [Abstract]
Amortization of deferred commissions	$ 38,303	$ 19,235

Condensed Consolidated Stateme6

Condensed Consolidated Statements of Comprehensive Loss (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Statement of Comprehensive Income [Abstract]
Net loss	$ (84,717)	$ (82,636)
Other comprehensive (loss) income, net of tax effects:
Foreign currency translation adjustment	(659)	412
Unrealized gain on marketable securities	0	143
Total other comprehensive (loss) income	(659)	555
Comprehensive loss	$ (85,376)	$ (82,081)

Condensed Consolidated Stateme7

Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash flows from operating activities:
Net loss	$ (84,717)	$ (82,636)
Adjustments to reconcile net loss to net cash used in operating activities:
Amortization of capitalized contract costs	95,363	0
Amortization of subscriber acquisition costs	0	46,878
Amortization of customer relationships	21,084	23,678
Depreciation and amortization of property, plant and equipment and other intangible assets	7,811	6,313
Amortization of deferred financing costs and bond premiums and discounts	1,343	1,991
Gain on fair value changes of equity securities	(332)	0
(Gain) loss on sale or disposal of assets	(50,459)	117
Loss on early extinguishment of debt	0	12,733
Stock-based compensation	204	427
Provision for doubtful accounts	3,968	4,682
Deferred income taxes	0	(456)
Changes in operating assets and liabilities:
Accounts and notes receivable	(6,124)	(3,640)
Inventories	5,914	(41,354)
Prepaid expenses and other current assets	(1,010)	(2,262)
Capitalized contract costs – deferred contract costs	(84,986)	0
Subscriber acquisition costs – deferred contract costs	0	(58,722)
Other assets	(6,135)	(12,395)
Accounts payable	(25,551)	42,947
Accrued expenses and other current liabilities	30,252	37,546
Deferred revenue	33,793	18,000
Net cash used in operating activities	(59,582)	(6,153)
Cash flows from investing activities:
Capital expenditures	(6,407)	(7,526)
Proceeds from the sale of intangible assets	53,693	0
Proceeds from the sale of capital assets	149	239
Acquisition of intangible assets	(849)	(623)
Acquisition of other assets	0	(126)
Net cash provided by (used in) investing activities	46,586	(8,036)
Cash flows from financing activities:
Proceeds from notes payable	0	324,750
Repayment of notes payable	0	(300,000)
Borrowings from revolving credit facility	57,000	0
Repayments on revolving credit facility	(40,000)	0
Repayments of capital lease obligations	(3,418)	(2,361)
Financing costs	0	(8,951)
Deferred financing costs	0	(5,537)
Return of capital	(966)	0
Net cash provided by financing activities	12,616	7,901
Effect of exchange rate changes on cash	(19)	(7)
Net decrease in cash and cash equivalents	(399)	(6,295)
Cash and cash equivalents:
Beginning of period	3,872	43,520
End of period	3,473	37,225
Supplemental non-cash investing and financing activities:
Capital lease additions	3,524	175
Capital expenditures included within accounts payable and accrued expenses and other current liabilities	572	1,058
Change in fair value of marketable securities	0	598
Financing costs included within accounts payable and accrued expenses and other current liabilities	0	1,072
Property acquired under build-to-suit agreements	$ 0	$ 6,900

Basis of Presentation and Signi

Basis of Presentation and Significant Accounting Policies	3 Months Ended
	Mar. 31, 2018
Accounting Policies [Abstract]
Basis of Presentation and Significant Accounting Policies	BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES Unaudited Interim Financial Statements —The accompanying interim unaudited condensed consolidated financial statements included in this Quarterly Report on Form 10-Q have been prepared by APX Group Holdings, Inc. and subsidiaries (the “Company”) without audit. The accompanying consolidated financial statements include the accounts of APX Group Holdings, Inc. and its subsidiaries. All significant intercompany balances and transactions have been eliminated in consolidation. Certain information and footnote disclosures normally included in consolidated financial statements prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) have been condensed or omitted pursuant to such rules and regulations. The information as of December 31, 2017 included in the unaudited condensed consolidated balance sheets was derived from the Company’s audited consolidated financial statements. The unaudited condensed consolidated financial statements included in this Quarterly Report on Form 10-Q were prepared on the same basis as the audited consolidated financial statements and, in the opinion of management, reflect all adjustments (all of which are considered of a normal recurring nature) considered necessary to present fairly the Company’s financial position, results of operations and cash flows for the periods and dates presented. The results of operations for the three months ended March 31, 2018 are not necessarily indicative of the results that may be expected for the year ending December 31, 2018 . These unaudited condensed consolidated financial statements and notes should be read in conjunction with the Company’s audited consolidated financial statements and related notes as set forth in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2017 , as filed with the Securities and Exchange Commission (“SEC”) on March 6, 2018, which is available on the SEC’s website at www.sec.gov. Basis of Presentation —The unaudited condensed consolidated financial statements of the Company are presented for APX Group Holdings, Inc. (“Holdings") and its wholly-owned subsidiaries. The Company has prepared the accompanying unaudited condensed consolidated financial statements pursuant to GAAP. Preparing financial statements requires the Company to make estimates and assumptions that affect the amounts that are reported in the consolidated financial statements and accompanying disclosures. Although these estimates are based on the Company’s best knowledge of current events and actions that the Company may undertake in the future, actual results may be different from the Company’s estimates. The results of operations presented herein are not necessarily indicative of the Company’s results for any future period. Vivint Flex Pay —In January 2017, the Company announced the introduction of the Vivint Flex Pay plan (“Vivint Flex Pay”), which became the Company's primary sales model beginning in March 2017. Under Vivint Flex Pay, customers pay separately for the products (including control panel, security peripheral equipment, smart home equipment, and related installation) (“Products”) and Vivint's smart home and security services (“Services”). The customer has the following three options to pay for the Products: (1) qualified customers in the United States may finance the purchase of Products through a third-party financing provider (“Consumer Financing Program”) (2) customers not eligible for the Consumer Financing Program, but who qualify under the Company's underwriting criteria, may enter into a retail installment contract (“RIC”) directly with Vivint, or (3) customers may purchase the Products at the outset of the service contract with cash, automatic clearing house payments (“ACH”), credit or debit card. Although customers pay separately for the Products and Services under the Vivint Flex Pay plan, the Company has determined that the shift in model does not change the Company's conclusion that the Product sales and Services are one single performance obligation. As a result, all forms of transactions under Vivint Flex Pay create deferred revenue for the gross amount of Products sold. Gross deferred revenues are reduced by imputed interest on the RICs and the present value of expected payments due to the third-party financing provider under the Consumer Financing Program. Under the Consumer Financing Program, qualified customers are eligible for installment loans provided by a third-party financing provider of up to $4,000 for either 42 or 60 months. The Company pays a monthly fee to the third-party financing provider based on the average daily outstanding balance of the installment loans. Additionally, the Company shares liability for credit losses depending on the credit quality of the customer. Because of the nature of these provisions under the Consumer Financing Program, the Company records a derivative liability at its fair value when the third-party financing provider originates installment loans to customers, which reduces the amount of revenue recognized on the provision of the services. The derivative liability is reduced as payments are made from the Company to the third-party financing provider. Subsequent changes to the fair value of the derivative liability are realized through other loss/(income), net in the Condensed Consolidated Statement of Operations. (See Note 8 ). Retail Installment Contract Receivables — For customers that enter into a RIC under the Vivint Flex Pay plan, the Company records a receivable for the amount financed. The RIC receivables are recorded at their present value, net of the imputed interest. At the time of installation, the Company records a long-term note receivable within long-term notes receivables and other assets, net on the condensed consolidated balance sheets for the present value of the receivables that are expected to be collected beyond 12 months of the reporting date. The unbilled receivable amounts that are expected to be collected within 12 months of the reporting date are included as a short-term notes receivable within accounts and notes receivable, net on the condensed consolidated balance sheets. The billed amounts of notes receivables are included in accounts receivable within accounts and notes receivable, net on the condensed consolidated balance sheets. The Company imputes the interest on the RIC receivable using a risk adjusted market interest rate and records it as an adjustment to deferred revenue and as an adjustment to the face amount of the related receivable. The imputed interest discount considers a number of factors, including collection experience, aging of the remaining RIC receivable portfolios, credit quality of the subscriber base and other qualitative considerations, including macro-economic factors. The imputed interest income is recognized over the term of the RIC contract as recurring and other revenue on the condensed consolidated statement of operations. When the Company determines that there are RIC receivables that have become uncollectible, the Company records an adjustment to the imputed interest discount and reduce the related note receivable balance. Account balances are written-off if collection efforts are unsuccessful and future collection is unlikely based on the length of time from the day accounts become past due. Accounts Receivable — Accounts receivable consists primarily of amounts due from customers for recurring monthly monitoring services and the billed portion of RIC receivables. The accounts receivable are recorded at invoiced amounts and are non-interest bearing and are included within accounts and notes receivable, net on the condensed consolidated balance sheets. Accounts receivable totaled $20.8 million and $24.3 million at March 31, 2018 and December 31, 2017 , respectively net of the allowance for doubtful accounts of $4.2 million and $5.4 million at March 31, 2018 and December 31, 2017 , respectively. The Company estimates this allowance based on historical collection experience and subscriber attrition rates. When the Company determines that there are accounts receivable that are uncollectible, they are charged off against the allowance for doubtful accounts. As of March 31, 2018 and December 31, 2017 , no accounts receivable were classified as held for sale. The provision for doubtful accounts is included in general and administrative expenses in the accompanying unaudited condensed consolidated statements of operations and totaled $4.0 million and $4.7 million for the three months ended March 31, 2018 and 2017 , respectively. The changes in the Company’s allowance for accounts receivable were as follows for the periods ended (in thousands): Three Months Ended March 31, 2018 Twelve Months Ended December 31, 2017 Beginning balance $ 5,356 $ 4,138 Provision for doubtful accounts 3,968 22,465 Write-offs and adjustments (5,168 ) (21,247 ) Balance at end of period $ 4,156 $ 5,356 Revenue Recognition— The Company offers its customers a smart home service combining home automation equipment, including a proprietary control panel, door and window sensors, door locks, security cameras and smoke alarms; installation; and a proprietary back-end cloud platform software and services. These together create an integrated system that allows the Company’s customers to monitor, control and protect their home (“Smart Home Services”). The Company’s customers are buying this integrated system that provides them with these Smart Home Services. The number and type of home automation devices purchased by a customer depends on their desired functionality. Because the equipment and services included in the customer’s contract are integrated and highly interdependent, and because they must work together to deliver the Smart Home Services, the Company has concluded that installed equipment, related installation and Smart Home Services contracted for by the customer are generally not distinct within the context of the contract and, therefore, constitute a single, combined performance obligation. Revenues for this single, combined performance obligation are recognized on a straight-line basis over the customer’s contract term. The Company has determined that certain contracts that do not require a long-term commitment for monitoring services by the customer contain a material right to renew the contract, because the customer does not have to purchase equipment upon renewal. Proceeds allocated to the material right are recognized over the period benefit, which is generally three years. The majority of the Company’s subscription contracts are between three and five years in length and are non-cancelable. These contracts with customers generally convert into month-to-month agreements at the end of the initial term, and some customer contracts are month-to-month from inception. Payment for recurring monitoring and other Smart Home Services is generally due in advance on a monthly basis. Sales of products and other one-time fees such as service fees or activation fees are invoiced to the customer at the time of sale. Revenues for wireless internet service provided by Vivint Wireless Inc. (“Wireless Internet” or “Wireless”) and any products or services that are considered separate performance obligations are recognized when those products or services are delivered. Taxes collected from customers and remitted to governmental authorities are not included in revenue. Payments received or amounts billed in advance of revenue recognition are reported as deferred revenue. Deferred Revenue— The Company's deferred revenues primarily consist of amounts for sales (including cash sales) of Smart Home Services. Deferred revenues are recognized over the term of the related performance obligation. Capitalized Contract Costs — Capitalized contract costs represent the costs directly related and incremental to the origination of new contracts, modification of existing contracts or to the fulfillment of the related customer contracts. These include commissions, other compensation and related costs paid directly for the generation and installation of new or upgraded customer contracts, as well as the cost of equipment installed in the customer home at the commencement or modification of the contract. These costs are deferred and amortized on a straight-line basis over the expected period of benefit that the Company has determined to be five years . Amortization of capitalized contract costs is included in “Depreciation and Amortization” on the consolidated statements of operations. These deferred costs are periodically reviewed for impairment. Contract costs not directly related and incremental to the origination of new contracts, modification of existing contracts or to the fulfillment of the related customer contracts are expensed as incurred. These costs include those associated with housing for direct-to-home sales representatives, marketing and recruiting, certain portions of sales commissions and residuals, overhead and other costs considered not directly and specifically tied to the origination of a particular subscriber. On the condensed consolidated statement of cash flows, capitalized contract costs are classified as operating activities and reported as “Capitalized contract costs – deferred contract costs” as these assets represent deferred costs associated with customer contracts. Cash and Cash Equivalents— Cash and cash equivalents consists of highly liquid investments with remaining maturities when purchased of three months or less. Inventories —Inventories, which are comprised of smart home and security system equipment and parts, are stated at the lower of cost or net realizable value with cost determined under the first-in, first-out (FIFO) method. The Company adjusts the inventory balance based on anticipated obsolescence, usage and historical write-offs. Long-lived Assets and Intangibles — Property, plant and equipment are stated at cost and depreciated on the straight-line method over the estimated useful lives of the assets or the lease term for assets under capital leases, whichever is shorter. Intangible assets with definite lives are amortized over the remaining estimated economic life of the underlying technology or relationships, which ranges from five to ten years . Definite-lived intangible assets are amortized on the straight-line method over the estimated useful life of the asset or in a pattern in which the economic benefits of the intangible asset are consumed. Amortization expense associated with leased assets is included with depreciation expense. Routine repairs and maintenance are charged to expense as incurred. The Company reviews long-lived assets, including property, plant and equipment, capitalized contract costs, and definite-lived intangibles for impairment when events or changes in circumstances indicate that the carrying amount may not be recoverable. The Company considers whether or not indicators of impairment exist on a regular basis and as part of each quarterly and annual financial statement close process. Factors the Company considers in determining whether or not indicators of impairment exist include market factors and patterns of customer attrition. If indicators of impairment are identified, the Company estimates the fair value of the assets. An impairment loss is recognized if the carrying amount of a long-lived asset is not recoverable and exceeds its fair value. The Company conducts an indefinite-lived intangible impairment analysis annually as of October 1, and as necessary if changes in facts and circumstances indicate that the fair value of the Company’s indefinite-lived intangibles may be less than the carrying amount. When indicators of impairment do not exist and certain accounting criteria are met, the Company is able to evaluate indefinite-lived intangible impairment using a qualitative approach. When necessary, the Company’s quantitative impairment test consists of two steps. The first step requires that the Company compare the estimated fair value of its indefinite-lived intangibles to the carrying value. If the fair value is greater than the carrying value, the intangibles are not considered to be impaired and no further testing is required. If the fair value is less than the carrying value, an impairment loss in an amount equal to the difference is recorded. During the three months ended March 31, 2018 and 2017 , no impairments to long-lived assets or intangibles were recorded. The Company’s depreciation and amortization included in the consolidated statements of operations consisted of the following (in thousands): Three Months Ended March 31, 2018 2017 Amortization of capitalized contract costs $ 95,363 $ — Amortization of subscriber acquisition costs — 46,878 Amortization of definite-lived intangibles 22,720 25,351 Depreciation of property, plant and equipment 6,175 4,640 Total depreciation and amortization $ 124,258 $ 76,869 Wireless Spectrum Licenses —The Company had capitalized, as an intangible asset, wireless spectrum licenses that its subsidiary, Vivint Wireless, acquired from a third party. The cost basis of the wireless spectrum asset included the purchase price paid for the licenses at the time of acquisition, plus costs incurred to acquire the licenses. The asset and related liability were recorded at the net present value of future cash outflows using the Company's incremental borrowing rate at the time of acquisition. The Company determined that the wireless spectrum licenses met the definition of indefinite-lived intangible assets because the licenses were able to be renewed periodically for a nominal fee, provided that the Company continued to meet the service and geographic coverage provisions. During the three months ended March 31, 2018, the Company terminated the wireless spectrum licenses for cash consideration. See Note 7 for further discussion. Long-term Investments —The Company’s long-term investments are comprised of equity securities in both privately held and public companies. As of March 31, 2018 and December 31, 2017 , the Company's equity investments totaled $3.8 million and $3.4 million , respectively. Management determines the appropriate fair value measurement of its investments at the time of purchase and reevaluates the fair value measurement at each balance sheet date. Equity securities are classified as either short-term or long-term, based on the nature of each security and its availability for use in current operations. The Company’s equity securities are carried at fair value, with gains and losses reported in other income or loss within the statement of operations. The Company's equity investments without readily determinable fair values totaled $0.7 million and $0.7 million as of March 31, 2018 and December 31, 2017 , respectively. The Company performs impairment analyses of its investments without readily determinable fair values when events occur or circumstances change that would, more likely than not, reduce the fair value of the investment below its carrying value. When indicators of impairment do not exist and certain accounting criteria are met, the Company evaluates impairment using a qualitative approach. Additionally, changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer are adjusted as needed. As of March 31, 2018 and December 31, 2017 , no indicators of impairment existed associated with investments without readily determinable fair values. Deferred Financing Costs —Costs incurred in connection with obtaining debt financing are deferred and amortized utilizing the straight-line method, which approximates the effective-interest method, over the life of the related financing. Deferred financing costs incurred with draw downs on APX Group, Inc.’s (“APX”) revolving credit facility will be amortized over the amended maturity dates discussed in Note 3 . If such financing is paid off or replaced prior to maturity with debt instruments that have substantially different terms, the unamortized costs are charged to expense. Deferred financing costs included in the accompanying unaudited condensed consolidated balance sheets within deferred financing costs, net at March 31, 2018 and December 31, 2017 were $2.8 million and $3.1 million , net of accumulated amortization of $8.8 million and $8.6 million , respectively. Deferred financing costs included in the accompanying unaudited condensed consolidated balance sheets within notes payable, net at March 31, 2018 and December 31, 2017 were $33.3 million and $35.7 million , net of accumulated amortization of $47.6 million and $45.2 million , respectively. Amortization expense on deferred financing costs recognized and included in interest expense in the accompanying unaudited condensed consolidated statements of operations, totaled $2.7 million and $2.9 million for the three months ended March 31, 2018 and 2017 , respectively (See Note 3 ). Residual Income Plan —The Company has a program that allows certain third-party sales channel partners to receive additional compensation based on the performance of the underlying contracts they create. The Company calculates the present value of the expected future payments and recognizes this amount in the period the commissions are earned. Subsequent accretion and adjustments to the estimated liability are recorded as interest and operating expense, respectively. The Company monitors actual payments and customer attrition on a periodic basis and, when necessary, makes adjustments to the liability. The amount included in accrued payroll and commissions was $4.0 million and $3.3 million at March 31, 2018 and December 31, 2017 , respectively, and the amount included in other long-term obligations was $22.3 million and $18.5 million at March 31, 2018 and December 31, 2017 , respectively, representing the present value of the estimated amounts owed to third-party sales channel partners. Stock-Based Compensation —The Company measures compensation costs based on the grant-date fair value of the award and recognizes that cost over the requisite service period of the awards (See Note 10 ). Advertising Expense —Advertising costs are expensed as incurred. Advertising costs were $13.7 million and $10.8 million for the three months ended March 31, 2018 and 2017 , respectively. Income Taxes —The Company accounts for income taxes based on the asset and liability method. Under the asset and liability method, deferred tax assets and deferred tax liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carryforwards. Valuation allowances are established when necessary to reduce deferred tax assets when it is determined that it is more likely than not that some portion, or all, of the deferred tax asset will not be realized. The Company recognizes the effect of an uncertain income tax position on the income tax return at the largest amount that is more likely than not to be sustained upon audit by the relevant taxing authority. An uncertain income tax position will not be recognized if it has less than a 50% likelihood of being sustained. The Company’s policy for recording interest and penalties is to record such items as a component of the provision for income taxes. Concentrations of Credit Risk —Financial instruments that potentially subject the Company to concentration of credit risk consist principally of receivables and cash. At times during the year, the Company maintains cash balances in excess of insured limits. The Company is not dependent on any single customer or geographic location. The loss of a customer would not adversely impact the Company’s operating results or financial position. Concentrations of Supply Risk —As of March 31, 2018 , approximately 72% of the Company’s installed panels were SkyControl panels and 26% were 2GIG Go!Control panels. During the three months ended March 31, 2018 the Company transitioned to a new panel supplier. The loss of the Company's panel supplier could potentially impact its operating results or financial position. Fair Value Measurement —Fair value is based on the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Assets and liabilities subject to on-going fair value measurement are categorized and disclosed into one of three categories depending on observable or unobservable inputs employed in the measurement. These two types of inputs have created the following fair value hierarchy: Level 1: Quoted prices in active markets that are accessible at the measurement date for assets and liabilities. Level 2: Observable prices that are based on inputs not quoted in active markets, but corroborated by market data. Level 3: Unobservable inputs are used when little or no market data is available. This hierarchy requires the Company to minimize the use of unobservable inputs and to use observable market data, if available, when determining fair value. The Company recognizes transfers between levels of the hierarchy based on the fair values of the respective financial measurements at the end of the reporting period in which the transfer occurred. There were no transfers between levels of the fair value hierarchy during the three months ended March 31, 2018 and 2017 . The carrying amounts of the Company’s accounts receivable, accounts payable and accrued and other liabilities approximate their fair values due to their short maturities. Goodwill —The Company conducts a goodwill impairment analysis annually in the fourth fiscal quarter, as of October 1, and as necessary if changes in facts and circumstances indicate that the fair value of the Company’s reporting units may be less than their carrying amounts. When indicators of impairment do not exist and certain accounting criteria are met, the Company is able to evaluate goodwill impairment using a qualitative approach. When necessary, the Company’s quantitative goodwill impairment test consists of two steps. The first step requires that the Company compare the estimated fair value of its reporting units to the carrying value of the reporting unit’s net assets, including goodwill. If the fair value of the reporting unit is greater than the carrying value of its net assets, goodwill is not considered to be impaired and no further testing is required. If the fair value of the reporting unit is less than the carrying value of its net assets, the Company would be required to complete the second step of the test by analyzing the fair value of its goodwill. If the carrying value of the goodwill exceeds its fair value, an impairment charge is recorded. The Company’s reporting units are determined based on its current reporting structure, which as of December 31, 2017 and March 31, 2018 consisted of two reporting units. As of March 31, 2018 , there were no changes in facts and circumstances since the most recent annual impairment analysis to indicate impairment existed. Foreign Currency Translation and Other Comprehensive Income —The functional currency of Vivint Canada, Inc. is the Canadian dollar. Accordingly, Vivint Canada, Inc. assets and liabilities are translated from their respective functional currencies into U.S. dollars at period-end rates and Vivint Canada, Inc. revenue and expenses are translated at the weighted-average exchange rates for the period. Adjustments resulting from this translation process are classified as other comprehensive income (loss) and shown as a separate component of equity. When intercompany foreign currency transactions between entities included in the consolidated financial statements are of a long term investment nature (i.e., those for which settlement is not planned or anticipated in the foreseeable future) foreign currency translation adjustments resulting from those transactions are included in stockholders’ deficit as accumulated other comprehensive loss or income. When intercompany transactions are deemed to be of a short term nature, translation adjustments are required to be included in the condensed consolidated statement of operations. The Company has determined that settlement of Vivint Canada, Inc. intercompany balances is anticipated and therefore such balances are deemed to be of a short term nature. Translation activity included in the statement of operations in other loss, net related to intercompany balances was a loss of $2.1 million for the three months ended March 31, 2018 and a gain of $0.7 million for the three months ended March 31, 2017 . Letters of Credit —As of March 31, 2018 and December 31, 2017 , the Company had $11.5 million and $9.5 million , respectively, of letters of credit issued in the ordinary course of business, all of which are undrawn. Restructuring and Asset Impairment Charges —Restructuring and asset impairment charges represent expenses incurred in relation to activities to exit or dispose of portions of the Company's business that do not qualify as discontinued operations. Liabilities associated with restructuring are measured at their fair value when the liability is incurred. Expenses for related termination benefits are recognized at the date the Company notifies the employee, unless the employee must provide future service, in which case the benefits are expensed ratably over the future service period. Liabilities related to termination of a contract are measured and recognized at fair value when the contract does not have any future economic benefit to the entity and the fair value of the liability is determined based on the present value of the remaining obligation. The Company expenses all other costs related to an exit or disposal activity as incurred (See Note 14 ). Recent Accounting Pronouncements —In June 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standard Update (“ASU”) 2016-13, “Financial Instruments—Credit Losses (Topic 326)” which modifies the measurement of expected credit losses of certain financial instruments. This update is effective for fiscal years, and interim periods within those years, beginning after December 15, 2019 and must be applied using a modified-retrospective approach, with early adoption permitted. The Company is evaluating the adoption of ASU 2016-13 and plans to provide additional information about its expected impact at a future date. In February 2016, the FASB issued ASU 2016-02, “Leases (Topic 326)” to increase transparency and comparability among organizations as it relates to lease assets and lease liabilities. The update requires that lease assets and lease liabilities be recognized on the balance sheet, and that key information about leasing arrangements be disclosed. Prior to this update, GAAP did not require operating leases to be recognized as lease assets and lease liabilities on the balance sheet. This update is effective for fiscal years, and interim periods within those years, beginning after December 15, 2018 and must be applied using a modified retrospective approach, with early adoption permitted. The Company is in the initial stages of evaluating the impact of ASU 2016-02 on its accounting policies, processes, and system requirements. The Company’s current operating lease portfolio is primarily comprised of network, real estate, and equipment leases. Upon adoption of this standard, the Company expects the balance sheet to include a right of use asset and liability related to substantially all operating lease arrangements. The Company has assigned internal resources to perform the evaluation. Furthermore, the Company has made and will continue to make investments in systems to enable timely and accurate reporting under the new standard. While the Company continues to assess the potential impacts of ASU 2016-02, including the areas described above, and anticipates this standard could have a material impact on the consolidated financial statements, the Company does not know or cannot reasonably estimate quantitative information related to the impact of the new standard on the financial statements at this time. Recently Adopted Accounting Standards ASU 2016-01 In January 2016, the FASB issued ASU 2016-01, "Financial Instruments-Overall (Subtopic 825-10)" which enhances the reporting model for financial instruments by addressing certain aspects of the recognition, measurement, presentation and disclosure of financial instr

Revenue and Capitalized Contrac

Revenue and Capitalized Contract Costs	3 Months Ended
	Mar. 31, 2018
Revenue from Contract with Customer [Abstract]
Revenue and Capitalized Contract Costs	REVENUE AND CAPITALIZED CONTRACT COSTS Customers are typically invoiced for Products and Services in advance or at the time the Company delivers the related Products or Services. The majority of customers pay at the time of invoice via credit card or ACH. The Company does not generally record any contract assets. Deferred revenue relates to the advance consideration received from customers, which precedes the Company’s satisfaction of the associated performance obligation. The Company’s deferred revenues primarily result from customer payments received in advance for recurring monthly monitoring and other Smart Home Services, and related Products or other one-time fees because these performance obligations are satisfied over time. The Company records deferred revenues when cash payments are received or due in advance of performance of the Company's obligations, including amounts which are refundable. The increase in the deferred revenue balance for the three months ended March 31, 2018 is primarily driven by cash payments received or due in advance of satisfying the Company's performance obligations, offset by $59.8 million of revenues recognized that were included in the deferred revenue balance as of December 31, 2017 . Transaction Price Allocated to the Remaining Performance Obligations As of March 31, 2018, approximately $2.0 billion of revenue is expected to be recognized from remaining performance obligations for subscription contracts. The Company expects to recognize revenue on approximately 68% of these remaining performance obligations over the next 24 months, with the remaining balance recognized over an additional 36 months. Financial Statement Impact of Adopting ASC 606 The Company adopted ASC 606 using the cumulative catch-up transition method. The cumulative effect of applying the new standard to all contracts with customers that were not completed as of January 1, 2018 was recorded as an adjustment to accumulated deficit as of the adoption date. As a result of applying the modified retrospective method to adopt the new revenue guidance, the following adjustments were made to select consolidated balance sheet line items as of January 1, 2018 (in thousands): Condensed Consolidated Balance Sheets (unaudited) As Reported Adjustments Adjusted December 31, 2017 January 1, 2018 Assets Capitalized contract costs, net $ — $ 1,020,408 $ 1,020,408 Subscriber acquisition costs, net 1,308,558 (1,308,558 ) — Long-term notes receivables and other assets, net 88,723 2,713 91,436 Liabilities and Stockholders' Deficit Accrued expenses and other current liabilities 74,321 10,329 84,650 Deferred revenue 88,337 39,868 128,205 Deferred revenue, net of current portion 264,555 (53,062 ) 211,493 Accumulated deficit (1,358,571 ) (282,572 ) (1,641,143 ) The following tables compare the select reported consolidated balance sheets, statements of operations and cash flows line items, as of and for the three months ended March 31, 2018 , to the pro-forma amounts had the previous guidance been in effect (in thousands): Condensed Consolidated Balance Sheets (unaudited) March 31, 2018 As Reported Balances Without Adoption of Topic 606 Effect of Change Higher/(Lower) Assets Capitalized contract costs, net $ 1,008,325 $ — $ 1,008,325 Subscriber acquisition costs, net — 1,328,449 (1,328,449 ) Liabilities and Stockholders' Deficit Accrued expenses and other current liabilities 124,344 114,133 10,211 Deferred revenue 142,985 95,690 47,295 Deferred revenue, net of current portion 229,978 298,989 (69,011 ) Accumulated deficit (1,726,540 ) (1,417,351 ) (309,189 ) Accumulated other comprehensive loss (27,280 ) (27,850 ) 570 Condensed Consolidated Statements of Operations and Comprehensive Loss (unaudited) Three months ended March 31, 2018 As Reported Balances Without Adoption of Topic 606 Effect of Change Higher/(Lower) Revenues: Recurring and other revenue $ 246,597 $ 227,294 $ 19,303 Service and other sales revenue — 8,035 (8,035 ) Activation fees — 2,631 (2,631 ) Costs and expenses: Operating expenses 83,760 87,988 (4,228 ) Depreciation and amortization 124,258 87,489 36,769 Loss before income taxes (85,150 ) (61,246 ) (23,904 ) Net loss (84,717 ) (60,813 ) (23,904 ) Other comprehensive loss, net of tax effects: Foreign currency translation adjustment (659 ) (1,229 ) 570 Total other comprehensive (loss) income (659 ) (1,229 ) 570 Comprehensive loss (85,376 ) (62,042 ) (23,334 ) Condensed Consolidated Statements of Cashflows (unaudited) March 31, 2018 As Reported Balances Without Adoption of Topic 606 Effect of Change Cash flows from operating activities: Net loss $ (84,717 ) $ (60,813 ) $ (23,904 ) Adjustments to reconcile net loss to net cash used in operating activities: Amortization of capitalized contract costs 95,363 — 95,363 Amortization of subscriber acquisition costs — 58,594 (58,594 ) Changes in operating assets and liabilities: Capitalized contract costs – deferred contract costs (84,986 ) — (84,986 ) Subscriber acquisition costs – deferred contract costs — (80,758 ) 80,758 Deferred revenue 33,793 42,430 (8,637 ) Net cash used in operating activities (59,582 ) (59,582 ) — Timing of Revenue Recognition The Company previously recognized certain service and other sales revenue when the services were provided or when title to Products sold transferred to the customer. Revenue from sales of Products that were not part of the service offering (i.e., those products sold subsequent to the date of the initial installation) were also generally recognized upon delivery of Products. Under the new standard, the Company considers equipment, related installation, and its proprietary back-end cloud platform software and services an integrated system that allows the Company’s customers to monitor, control and protect their homes. These Smart Home Services are accounted for as a single performance obligation that is recognized over the customer’s contract term. Accordingly, the Company now defers a larger portion of certain Product and Service revenue, as prior to the adoption of Topic 606 certain of this revenue was recognized at the time services were provided or upon delivery. The Company previously amortized deferred revenues related to sales of Products and activation fees on subscriber contracts over the expected life of the customer, which was 15 years using a 240% declining balance method. Under the new standard , activation fees are included in the transaction price allocated to the single Smart Home Service performance obligation and recognized straight-line over the customer’s contract term, which is generally three to five years . Capitalized Contract Costs Capitalized contract costs generally include commissions, other compensation and related costs paid directly for the generation and installation of new or modified customer contracts, as well as the cost of equipment installed in the customer home at the commencement or modification of the contract. The Company previously deferred and amortized these costs for new customer contracts in a pattern that reflected the estimated life of subscriber relationships and generally expensed all costs associated with modified customer contracts. Under the new standard, the Company defers and amortizes these costs for new or modified customer contracts on a straight-line basis over the expected period of benefit of five years .

Long-Term Debt

Long-Term Debt	3 Months Ended
	Mar. 31, 2018
Debt Disclosure [Abstract]
Long-Term Debt	LONG-TERM DEBT Notes Payable On November 16, 2012, APX issued $1.3 billion aggregate principal amount of notes, of which $925.0 million aggregate principal amount of 6.375% senior secured notes due 2019 (the “2019 notes”) mature on December 1, 2019 and are secured on a first-priority lien basis by substantially all of the tangible and intangible assets whether now owned or hereafter acquired by the Company, subject to permitted liens and exceptions, and $380.0 million aggregate principal amount of 8.75% senior notes due 2020 (the “2020 notes”), mature on December 1, 2020. During 2013, APX completed two offerings of additional 2020 notes under the indenture dated November 16, 2012. On May 31, 2013, APX issued $200.0 million of 2020 notes at a price of 101.75% and on December 13, 2013, APX issued an additional $250.0 million of 2020 notes at a price of 101.50% . During 2014, APX issued an additional $100.0 million of 2020 notes at a price of 102.00% . In October 2015, APX issued $300.0 million aggregate principal amount of 8.875% senior secured notes due 2022 (the “2022 private placement notes”), pursuant to a note purchase agreement dated as of October 19, 2015 in a private placement exempt from registration under the Securities Act. The 2022 private placement notes will mature on December 1, 2022, unless on September 1, 2020 (the 91st day prior to the maturity of the 2020 notes) more than an aggregate principal amount of $190.0 million of such 2020 notes remain outstanding or have not been refinanced as permitted under the note purchase agreement for the 2022 private placement notes, in which case the 2022 private placement notes will mature on September 1, 2020. The 2022 private placement notes are secured, on a pari passu basis, by the collateral securing obligations under the 2019 notes, the 2022 private placement notes, the 2022 notes (as defined below), and the 2023 notes (as defined below) and the revolving credit facilities, in each case, subject to certain exceptions and permitted liens. In May 2016, APX issued $500.0 million aggregate principal amount of 7.875% senior secured notes due 2022 (the “2022 notes”), pursuant to an indenture dated as of May 26, 2016 among APX, the guarantors party thereto and Wilmington Trust, National Association, as trustee and collateral agent. The 2022 notes will mature on December 1, 2022, or on such earlier date when any outstanding pari passu lien indebtedness matures as a result of the operation of any “Springing Maturity” provision set forth in the agreements governing such pari passu lien indebtedness. The 2022 notes are secured, on a pari passu basis, by the collateral securing obligations under the 2019 notes and 2022 private placement notes and the revolving credit facilities, in all cases, subject to certain exceptions and permitted liens. APX used a portion of the net proceeds from the issuance of the 2022 notes to repurchase approximately $235 million aggregate principal amount of the outstanding 2019 notes and 2022 private placement notes in privately negotiated transactions and repaid borrowings under the existing revolving credit facility. In August 2016, APX issued an additional $100.0 million aggregate principal amount of the 2022 notes at a price of 104.00% . In February 2017, APX issued an additional $300.0 million aggregate principal amount of the 2022 notes at a price of 108.25% (“February 2017 issuance”.) A portion of the net proceeds from the offering of these 2022 notes were used to redeem $300.0 million aggregate principal amount of the existing 2019 notes and pay the related accrued interest and redemption premium, and to pay all fees and expenses related thereto and any remaining proceeds will be used for general corporate purposes. In August 2017, APX issued $400.0 million aggregate principal amount of the 7.625% senior notes due 2023 (the “2023 notes” and, together with the 2019 notes, the 2020 notes and the 2022 private placement notes, the “notes”). The proceeds from the outstanding 2023 notes offering were used to redeem $150.0 million aggregate principal amount of the outstanding 2019 notes and pay the related accrued interest and redemption premium, and to pay all fees and expenses related thereto. Any remaining net proceeds have been or will be used for general corporate purposes, which may include the repayment of outstanding borrowings under the revolving credit facility. The notes are fully and unconditionally guaranteed, jointly and severally by APX and each of APX’s existing restricted subsidiaries that guarantee indebtedness under APX’s revolving credit facility or the Company's other indebtedness. Interest accrues at the rate of 6.375% per annum for the 2019 notes, 8.75% per annum for the 2020 notes, 8.875% per annum for the 2022 private placement notes, 7.875% per annum for the 2022 notes and 7.625% per annum for the 2023 notes. Interest on the 2019 notes, 2020 notes, 2022 private placement notes and 2022 notes is payable semiannually in arrears on each June 1 and December 1. Interest on the 2023 notes is payable semiannually in arrears on each March 1 and September 1. APX may redeem the notes at the prices and on the terms specified in the applicable indenture or note purchase agreement. Debt Modifications and Extinguishments In accordance with ASC 470-50 Debt – Modifications and Extinguishments, the Company performed analyses on a creditor-by-creditor basis for the February 2017 issuance to determine if the repurchased notes were substantially different than the notes issued to determine the appropriate accounting treatment of associated issuance fees. As a result of these analyses the company recorded the following amounts of other expense and loss on extinguishment and deferred financing costs during the three months ended March 31, 2017 (in thousands): Other expense and loss on extinguishment Deferred financing costs Issuance Original discount extinguished Original deferred financing costs extinguished New financing costs Total other expense and loss on extinguishment Original deferred financing rolled over New deferred financing costs Total deferred financing costs Three months ended March 31, 2017 February 2017 issuance $ — $ 3,259 $ 9,491 $ 12,750 $ 1,476 $ 6,076 $ 7,552 The original unamortized portion of deferred financing costs associated with new creditors and creditors under the repurchased notes, whose debt instruments were not deemed to be substantially different, will be amortized to interest expense over the life of the issued notes. The Company had no debt issuances or related modification or extinguishment costs during the three months ended March 31, 2018 . The following table presents deferred financing activity for the three months ended March 31, 2018 and year ended December 31, 2017 (in thousands): Unamortized Deferred Financing Costs Balance December 31, 2017 Additions Refinances Early Extinguishment Amortized Balance March 31, 2018 Revolving Credit Facility $ 3,099 $ — $ — $ — $ (260 ) $ 2,839 2019 Notes 2,877 — — — (375 ) 2,502 2020 Notes 11,209 — — — (961 ) 10,248 2022 Private Placement Notes 752 — — — (38 ) 714 2022 Notes 16,067 — — — (817 ) 15,250 2023 Notes 4,762 — — — (210 ) 4,552 Total Deferred Financing Costs $ 38,766 $ — $ — $ — $ (2,661 ) $ 36,105 Unamortized Deferred Financing Costs Balance December 31, 2016 Additions Refinances Early Extinguishment Amortized Balance December 31, 2017 Revolving Credit Facility $ 4,420 $ 399 $ — $ — $ (1,720 ) $ 3,099 2019 Notes 11,693 — (1,949 ) (4,667 ) (2,200 ) 2,877 2020 Notes 15,053 — — — (3,844 ) 11,209 2022 Private Placement Notes 903 — — — (151 ) 752 2022 Notes 11,714 6,076 1,476 — (3,199 ) 16,067 2023 Notes — 4,569 473 — (280 ) 4,762 Total Deferred Financing Costs $ 43,783 $ 11,044 $ — $ (4,667 ) $ (11,394 ) $ 38,766 Revolving Credit Facility On November 16, 2012, APX entered into a $200.0 million senior secured revolving credit facility, with a five year maturity. On March 6, 2015, APX amended and restated the credit agreement governing the revolving credit facility to provide for, among other things, (1) an increase in the aggregate commitments previously available to APX thereunder from $200.0 million to $289.4 million (“Revolving Commitments”) and (2) the extension of the maturity date with respect to certain of the previously available commitments. On August 10, 2017, APX further amended and restated the credit agreement governing the revolving credit facility to provide for, among other things, (1) an increase in the aggregate commitments previously available to the Company from $289.4 million to $324.3 million and (2) the extension of the maturity date with respect to certain of the previously available commitments. Borrowings under the amended and restated revolving credit facility bear interest at a rate per annum equal to an applicable margin plus, at APX’s option, either (1) the base rate determined by reference to the highest of (a) the Federal Funds rate plus 0.50% , (b) the prime rate of Bank of America, N.A. and (c) the LIBOR rate determined by reference to the costs of funds for U.S. dollar deposits for an interest period of one month, plus 1.00% or (2) the LIBOR rate determined by reference to the London interbank offered rate for dollars for the interest period relevant to such borrowing. The applicable margin for base rate-based borrowings (1)(a) under the Series A Revolving Commitments of approximately $267.0 million and Series D Revolving Commitments of approximately $15.4 million is currently 2.0% per annum and (b) under the Series B Revolving Commitments of approximately $21.2 million is currently 3.0% and (2)(a) the applicable margin for LIBOR rate-based borrowings (a) under the Series A Revolving Commitments, Series C Revolving Commitments, and Series D Revolving Commitments is currently 3.0% per annum and (b) under the Series B Revolving Commitments is currently 4.0% . The applicable margin for borrowings under the revolving credit facility is subject to one step-down of 25 basis points based on APX meeting a consolidated first lien net leverage ratio test at the end of each fiscal quarter. In November 2017, previous commitments of $20.8 million under the Series C Revolving Commitments had expired. Outstanding borrowings under the amended and restated revolving credit facility are allocated on a pro-rata basis between each Series based on the total Revolving Commitments. In addition to paying interest on outstanding principal under the revolving credit facility, APX is required to pay a quarterly commitment fee (which will be subject to one interest rate step-down of 12.5 basis points, based on APX meeting a consolidated first lien net leverage ratio test) to the lenders under the revolving credit facility in respect of the unutilized commitments thereunder. APX also pays customary letter of credit and agency fees. APX is not required to make any scheduled amortization payments under the revolving credit facility. The principal amount outstanding under the revolving credit facility will be due and payable in full on (1) with respect to the non-extended commitments under the Series D, March 31, 2019 and (2) with respect to the extended commitments under the Series A Revolving Credit Facility and Series B Revolving Credit Facility, March 31, 2021 . As of March 31, 2018 and December 31, 2017 , there were $77.0 million and $60.0 million , respectively, of outstanding borrowings under the credit facility. As of March 31, 2018 the Company had $215.1 million of availability under our revolving credit facility (after giving effect to $11.5 million of letters of credit outstanding and $77.0 million in borrowings). The Company’s debt at March 31, 2018 and December 31, 2017 consisted of the following (in thousands): March 31, 2018 Outstanding Principal Unamortized Premium (Discount) Unamortized Deferred Financing Costs (1) Net Carrying Amount Series D Revolving Credit Facility Due 2019 $ 4,000 $ — $ — $ 4,000 Series A, B Revolving Credit Facilities Due 2021 73,000 — — 73,000 6.375% Senior Secured Notes due 2019 269,465 — (2,502 ) 266,963 8.75% Senior Notes due 2020 930,000 4,122 (10,248 ) 923,874 8.875% Senior Secured Notes Due 2022 270,000 (2,453 ) (714 ) 266,833 7.875% Senior Secured Notes Due 2022 900,000 23,512 (15,250 ) 908,262 7.625% Senior Notes Due 2023 400,000 — (4,552 ) 395,448 Total Long-Term Debt $ 2,846,465 $ 25,181 $ (33,266 ) $ 2,838,380 December 31, 2017 Outstanding Principal Unamortized Premium (Discount) Unamortized Deferred Financing Costs (1) Net Carrying Amount Series D Revolving Credit Facility Due 2019 $ 3,000 $ — $ — $ 3,000 Series A, B Revolving Credit Facilities Due 2021 57,000 — — 57,000 6.375% Senior Secured Notes due 2019 269,465 — (2,877 ) 266,588 8.75% Senior Notes due 2020 930,000 4,465 (11,209 ) 923,256 8.875% Senior Secured Notes due 2022 270,000 (2,559 ) (752 ) 266,689 7.875% Senior Secured Notes due 2022 900,000 24,593 (16,067 ) 908,526 7.625% Senior Secured Notes Due 2023 400,000 — (4,762 ) 395,238 Total Long-Term Debt $ 2,829,465 $ 26,499 $ (35,667 ) $ 2,820,297 (1) Unamortized deferred financing costs related to the revolving credit facilities included in deferred financing costs, net on the condensed consolidated balance sheets at March 31, 2018 and December 31, 2017 was $2.8 million and $3.1 million , respectively.

Retail Installment Contract Rec

Retail Installment Contract Receivables	3 Months Ended
	Mar. 31, 2018
Receivables [Abstract]
Retail Installment Contract Receivables	RETAIL INSTALLMENT CONTRACT RECEIVABLES Certain subscribers have the option to purchase Products under a RIC, payable over either 42 or 60 months. Short-term RIC receivables are recorded in accounts and notes receivable, net and long-term RIC receivables are recorded in long-term notes receivables and other assets, net in the condensed consolidated unaudited balance sheets. The following table summarizes the installment receivables (in thousands): March 31, 2018 December 31, 2017 RIC receivables, gross $ 140,038 $ 131,024 Deferred interest (32,441 ) (36,048 ) RIC receivables, net of deferred interest $ 107,597 $ 94,976 Classified on the condensed consolidated unaudited balance sheets as: Accounts and notes receivable, net $ 20,643 $ 16,469 Long-term notes receivables and other assets, net 86,954 78,507 RIC receivables, net $ 107,597 $ 94,976 Activity in the deferred interest for the RIC receivables was as follows (in thousands): Three months ended March 31, 2018 Twelve months ended December 31, 2017 Deferred interest, beginning of period $ 36,048 $ — Write-offs, net of recoveries (6,729 ) (6,055 ) Change in deferred interest on short-term and long-term RIC receivables 3,122 42,103 Deferred interest, end of period $ 32,441 $ 36,048 During the three months ended March 31, 2018 the amount of RIC imputed interest income recognized in recurring and other revenue was $3.3 million . During the three months ended March 31, 2017 the amount of RIC imputed interest income recognized in recurring and other revenue was immaterial.

Balance Sheet Components

Balance Sheet Components	3 Months Ended
	Mar. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Balance Sheet Components	BALANCE SHEET COMPONENTS The following table presents material balance sheet component balances (in thousands): March 31, 2018 December 31, 2017 Prepaid expenses and other current assets Prepaid expenses $ 9,884 $ 8,000 Deposits 780 1,596 Other 6,491 6,554 Total prepaid expenses and other current assets $ 17,155 $ 16,150 Capitalized contract costs Capitalized contract costs $ 1,956,259 $ — Accumulated amortization (947,934 ) — Capitalized contract costs, net $ 1,008,325 $ — Subscriber acquisition costs Subscriber acquisition costs $ — $ 1,837,388 Accumulated amortization — (528,830 ) Subscriber acquisition costs, net $ — $ 1,308,558 Long-term notes receivables and other assets RIC receivables, gross $ 119,395 $ 114,556 RIC deferred interest (32,441 ) (36,049 ) Security deposits 6,555 6,427 Investments 3,785 3,429 Other 344 360 Total long-term notes receivables and other assets, net $ 97,638 $ 88,723 Accrued payroll and commissions Accrued commissions $ 13,894 $ 27,485 Accrued payroll 23,455 30,267 Total accrued payroll and commissions $ 37,349 $ 57,752 Accrued expenses and other current liabilities Accrued interest payable $ 67,965 $ 28,737 Current portion of derivative liability 30,061 25,473 Service warranty accrual 8,538 — Accrued taxes 3,768 4,585 Spectrum license obligation — 3,861 Accrued payroll taxes and withholdings 3,489 3,185 Loss contingencies 2,406 2,156 Blackstone monitoring fee, a related party 1,900 933 Other 6,217 5,391 Total accrued expenses and other current liabilities $ 124,344 $ 74,321

Property Plant and Equipment

Property Plant and Equipment	3 Months Ended
	Mar. 31, 2018
Property, Plant and Equipment [Abstract]
Property Plant and Equipment	PROPERTY PLANT AND EQUIPMENT Property, plant and equipment consisted of the following (in thousands): March 31, 2018 December 31, 2017 Estimated Useful Lives Vehicles $ 46,405 $ 42,008 3 - 5 years Computer equipment and software 48,183 46,651 3 - 5 years Leasehold improvements 21,231 20,783 2 - 15 years Office furniture, fixtures and equipment 18,413 17,202 7 years Build-to-suit lease building 8,268 8,268 10.5 years Construction in process 3,857 4,299 Property, plant and equipment, gross 146,357 139,211 Accumulated depreciation and amortization (66,713 ) (61,130 ) Property, plant and equipment, net $ 79,644 $ 78,081 Property, plant and equipment, net includes approximately $29.0 million and $26.2 million of assets under capital lease obligations at March 31, 2018 and December 31, 2017 , respectively, net of accumulated amortization of $18.2 million and $16.6 million at March 31, 2018 and December 31, 2017 , respectively. Depreciation and amortization expense on all property, plant and equipment was $6.2 million and $4.6 million for the three months ended March 31, 2018 and 2017 , respectively. Amortization expense relates to assets under capital leases and is included in depreciation and amortization expense.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	3 Months Ended
	Mar. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	GOODWILL AND INTANGIBLE ASSETS Goodwill As of March 31, 2018 and December 31, 2017 , the Company had a goodwill balance of $836.3 million and $837.0 million , respectively. The change in the carrying amount of goodwill during the three months ended March 31, 2018 was the result of foreign currency translation adjustments. Intangible assets, net The following table presents intangible asset balances (in thousands): March 31, 2018 December 31, 2017 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Estimated Definite-lived intangible assets: Customer contracts $ 968,230 $ (657,570 ) $ 310,660 $ 970,147 $ (637,780 ) $ 332,367 10 years 2GIG 2.0 technology 17,000 (13,779 ) 3,221 17,000 (13,274 ) 3,726 8 years Other technology 2,917 (1,354 ) 1,563 2,917 (1,250 ) 1,667 5 - 7 years Space Monkey technology 7,100 (4,488 ) 2,612 7,100 (4,066 ) 3,034 6 years Patents 10,994 (6,440 ) 4,554 10,616 (5,835 ) 4,781 5 years Total definite-lived intangible assets: $ 1,006,241 $ (683,631 ) $ 322,610 $ 1,007,780 $ (662,205 ) $ 345,575 Indefinite-lived intangible assets: Spectrum licenses $ — $ — $ — $ 31,253 $ — $ 31,253 IP addresses 564 — 564 564 — 564 Domain names 59 — 59 59 — 59 Total Indefinite-lived intangible assets 623 — 623 31,876 — 31,876 Total intangible assets, net $ 1,006,864 $ (683,631 ) $ 323,233 $ 1,039,656 $ (662,205 ) $ 377,451 During the year ended December 31, 2016, Vivint Wireless entered into leasing agreements with Nextlink Wireless, LLC (“Nextlink”) for designated radio frequency spectrum in 40 mid-sized metropolitan markets. The lease term was for seven years, with an option to become the licensor of record with the Federal Communications Commission (“FCC”) with respect to the applicable spectrum licenses at the end of this term for a nominal fee. The Company acquired $31.3 million of spectrum licenses, measured using the present value of the lease payments, and recorded an intangible asset and a corresponding liability within other long-term obligations. While licenses are issued for only a fixed time, such licenses are subject to renewal by the FCC. On January 10, 2018, Vivint Wireless and Verizon consummated the transactions contemplated by a termination agreement to which the parties agreed, among other things, to terminate the spectrum leases between Vivint Wireless and Nextlink, a subsidiary of Verizon, in exchange for a cash payment by Verizon to Vivint Wireless. The calculation of the gain recorded included cash proceeds of $55.0 million , extinguishment of the spectrum license liability of $27.9 million , offset by the write-off of the spectrum license asset in the amount of $31.3 million and regulatory costs associated with the sale of $1.3 million for a total net gain on sale of $50.4 million which is included in other income, net in the condensed consolidated statement of operations. Amortization expense related to intangible assets was approximately $22.7 million and $25.4 million for the three months ended March 31, 2018 and 2017 , respectively. As of March 31, 2018 , the remaining weighted-average amortization period for definite-lived intangible assets was 4.6 years years. Estimated future amortization expense of intangible assets, excluding approximately $0.2 million in patents currently in process, is as follows as of March 31, 2018 (in thousands): 2018 - Remaining Period $ 68,108 2019 78,932 2020 67,845 2021 58,691 2022 48,832 Thereafter 23 Total estimated amortization expense $ 322,431

Financial Instruments

Financial Instruments	3 Months Ended
	Mar. 31, 2018
Fair Value Disclosures [Abstract]
Financial Instruments	FINANCIAL INSTRUMENTS Cash, Cash Equivalents and Equity Securities Cash equivalents and equity securities with readily available determinable fair values (“Corporate Securities”) are classified as level 1 assets, as they have readily available market prices in an active market. As of March 31, 2018 and December 31, 2017 , the Company held an immaterial amount of money market funds. As of March 31, 2018 and December 31, 2017 , the company held $3.0 million and $2.7 million , respectively, of Corporate Securities classified as level 1 investments. The following tables set forth the Company’s cash and cash equivalents and Corporate Securities’ adjusted cost, gross unrealized gains, gross unrealized losses, gross realized gains, gross realized losses and fair value by significant investment category recorded as cash and cash equivalents or long-term notes receivables and other assets, net as of March 31, 2018 and December 31, 2017 (in thousands): March 31, 2018 Adjusted Cost Unrealized Gains Unrealized Losses Fair Value Cash and Cash Equivalents Long-Term Notes Receivables and Other Assets, net Cash $ 3,467 $ — $ — $ 3,467 $ 3,467 $ — Level 1: Money market funds 6 — — 6 6 — Corporate securities 2,703 334 — 3,037 — 3,037 Subtotal 2,709 334 — 3,043 6 3,037 Total $ 6,176 $ 334 $ — $ 6,510 $ 3,473 $ 3,037 December 31, 2017 Adjusted Cost Unrealized Gains Unrealized Losses Fair Value Cash and Cash Equivalents Long-Term Notes Receivables and Other Assets, net Cash $ 3,866 $ — $ — $ 3,866 $ 3,866 $ — Level 1: Money market funds 6 — — 6 6 — Corporate securities 4,018 — (1,315 ) 2,703 — 2,703 Subtotal 4,024 — (1,315 ) 2,709 6 2,703 Total $ 7,890 $ — $ (1,315 ) $ 6,575 $ 3,872 $ 2,703 The Corporate Securities represents the Company's investment of $3.0 million in publicly traded common stock of a non-affiliated company (“investee”). During the three months ended March 31, 2018 , the Company recorded an unrealized gain of $0.3 million associated with the change in fair value of the investee's stock. During the three months ended March 31, 2017 , the Company recorded an unrealized gain of $0.6 million associated with the change in fair value of the investee's stock. As of March 31, 2018 the Company had no accumulated other comprehensive income associated with unrealized gains and losses for the change in fair value of the investment as a result of the adoption of ASU 2016-01. The balance of accumulated other comprehensive income associated with unrealized gains and losses for the change in fair value totaled net losses of $0.3 million at December 31, 2017 . The carrying amounts of the Company’s accounts and notes receivable, accounts payable and accrued and other liabilities approximate their fair values. Long-Term Debt Components of long-term debt including the associated interest rates and related fair values are as follows (in thousands, except interest rates): March 31, 2018 December 31, 2017 Stated Interest Rate Issuance Face Value Estimated Fair Value Face Value Estimated Fair Value 2019 Notes $ 269,465 $ 270,220 $ 269,465 $ 273,507 6.375 % 2020 Notes 930,000 937,719 930,000 952,134 8.75 % 2022 Private Placement Notes 270,000 273,964 270,000 276,486 8.875 % 2022 Notes 900,000 934,380 900,000 966,420 7.875 % 2023 Notes 400,000 414,000 400,000 425,000 7.625 % Total $ 2,769,465 $ 2,830,283 $ 2,769,465 $ 2,893,547 The fair values of the 2019 notes, the 2020 notes, the 2022 private placement notes, the 2022 notes and the 2023 notes were considered Level 2 measurements as the values were determined using observable market inputs, such as current interest rates, prices observable from less active markets, as well as prices observable from comparable securities. Derivative Financial Instruments Under the Consumer Financing Program, the Company pays a monthly fee to a third-party financing provider based on the average daily outstanding balance of the installment loans and shares the liability for credit losses, depending on the credit quality of the customer. Because of the nature of certain provisions under the Consumer Financing Program, the Company records a derivative liability that is not designated as a hedging instrument and is adjusted to fair value, measured using the present value of the estimated future payments. Changes to the fair value are recorded through other loss (income), net in the Consolidated Statement of Operations. The following represent the contractual obligations with the third-party financing provider under the Consumer Financing Program that are components of the derivative: • The Company pays a monthly fee based on the average daily outstanding balance of the installment loans • The Company shares the liability for credit losses depending on the credit quality of the customer • The Company pays transactional fees associated with customer payment processing The derivative is classified as a Level 3 instrument. The derivative positions are valued using a discounted cash flow model, with inputs consisting of available market data, such as market yield discount rates, as well as unobservable internally derived assumptions, such as collateral prepayment rates, collateral default rates and loss severity rates. These derivatives are priced quarterly using a credit valuation adjustment methodology. In summary, the fair value represents an estimate of the present value of the cash flows the Company will be obligated to pay to the third-party financing provider for each component of the derivative. The following table summarizes the fair value and the notional amount of the Company’s outstanding derivative instrument as of March 31, 2018 and December 31, 2017 (in thousands): March 31, 2018 December 31, 2017 Consumer Financing Program Contractual Obligations: Fair value $ 54,015 $ 46,496 Notional amount 189,225 163,032 Classified on the condensed consolidated unaudited balance sheets as: Accrued expenses and other current liabilities 30,061 25,473 Other long-term obligations 23,954 21,023 Total Consumer Financing Program Contractual Obligation $ 54,015 $ 46,496 Changes in Level 3 Fair Value Measurements The following table summarizes the change in the fair value of the Level 3 outstanding derivative instrument for the three months ended March 31, 2018 and the twelve months ended December 31, 2017 (in thousands): Three months ended March 31, 2018 Twelve months ended December 31, 2017 Balance, beginning of period $ 46,496 $ — Additions 10,487 44,913 Settlements (6,505 ) (7,972 ) Losses included in earnings 3,537 9,555 Balance, end of period $ 54,015 $ 46,496

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2018
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES In order to determine the quarterly provision for income taxes, the Company uses an estimated annual effective tax rate, which is based on expected annual income and statutory tax rates in the various jurisdictions in which the Company operates. Certain significant or unusual items are separately recognized in the quarter during which they occur and can be a source of variability in the effective tax rates from quarter to quarter. The Company’s effective income tax rate for the three months ended March 31, 2018 and 2017 was approximately 0.70% and a negative 0.53% , respectively. Income tax expense for the three months ended March 31, 2018 was affected by year to date loss in Canada and estimated minimum state taxes in the US. Both the 2018 and 2017 effective tax rates differ from the statutory rate primarily due to the combination of not benefiting from expected pre-tax US losses, a result of changes to the valuation allowance, and recognizing current state income tax expense for minimum state taxes. On December 22, 2017, the U.S. Tax Cuts and Jobs Act of 2017 (“Tax Reform”) was signed into law. Among other changes in the Tax Reform, effective January 1, 2018, the U.S. statutory tax rate was lowered from 35% to 21% , the deduction for net business interest is limited to 30% of adjusted taxable income, business deductions are disallowed for entertainment expenses, limitation of net operating losses generated after fiscal 2017 to 80% of taxable income, and certain exceptions for performance-based compensation and commissions were eliminated from the definition of applicable employee remuneration subject to a $1.0 million deduction limit. In December 2017, the SEC issued Staff Accounting Bulletin No. 118, Income Tax Accounting Implications of the Tax Cuts and Jobs Act (“SAB 118”), which provides guidance on accounting for the tax effects of Tax Reform. SAB 118 provides a measurement period that should not extend beyond one year from the enactment date for companies to complete the accounting relating to Tax Reform under ASC Topic 740. In accordance with SAB 118, to the extent that a company’s accounting for certain income tax effects of Tax Reform is incomplete, but it is able to determine a reasonable estimate, the company should report a provisional estimate in its financial statements. Where a reasonable estimate cannot be determined, a company should continue to apply ASC Topic 740 based on the provisions of the tax laws that were in effect immediately before the enactment of Tax Reform. The Company has not fully completed its accounting for the income tax effects of Tax Reform but will have an updated analysis at year end. Items for which a reasonable estimate has been determined include the impact of the change in the corporate tax rate from 35% to 21%, limitation on the current deductibility of net interest expense in excess of 30 percent of adjusted taxable income, changes to the non-deductible executive compensation provisions, and entertainment and other expense deduction limitations. Other significant provisions that did not have an impact on the interim provision but may impact income taxes at the Company’s year-end or in future years include: a limitation of net operating losses generated after fiscal 2017 to 80% of taxable income, 100% bonus depreciation on certain assets, and the impact of the inclusion of any global intangible low-taxed income, the potential deductions on foreign-derived intangible income and the GILTI inclusion amount, and the base erosion and anti-abuse tax. Significant judgment is required in determining the Company’s provision for income taxes, recording valuation allowances against deferred tax assets, and evaluating the Company’s uncertain tax positions. In evaluating the ability to realize its deferred tax assets, in full or in part, the Company considers all available positive and negative evidence, including past operating results, forecasted future earnings, and prudent and feasible tax planning strategies. Due to historical net losses incurred and the uncertainty of realizing the deferred tax assets, for all the periods presented, the Company has maintained a valuation allowance against the domestic deferred tax assets that remain after offset by domestic deferred tax liabilities. The Company has not recorded a valuation allowance against its foreign deferred tax assets due to being in a net deferred tax liability position.

Stock-Based Compensation and Eq

Stock-Based Compensation and Equity	3 Months Ended
	Mar. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation and Equity	STOCK-BASED COMPENSATION AND EQUITY 313 Incentive Units The Company’s indirect parent, 313 Acquisition LLC (“313”), which is majority owned by Blackstone, has authorized the award of profits interests, representing the right to share a portion of the value appreciation on the initial capital contributions to 313 (“Incentive Units”). In March 2015, a total of 4,315,106 Incentive Units previously issued to the Company’s Chief Executive Officer and President were voluntarily relinquished. The Company recorded all unrecognized stock-based compensation associated with such Incentive Units at the time the Incentive Units were relinquished. As of March 31, 2018 , 85,362,836 Incentive Units had been awarded, and were outstanding, to current and former members of senior management and a board member, of which 42,169,456 were outstanding to the Company’s Chief Executive Officer and President. The Incentive Units are subject to time-based and performance-based vesting conditions, with one-third subject to ratable time-based vesting over a five year period and two-thirds subject to the achievement of certain investment return thresholds by The Blackstone Group, L.P. and its affiliates (“Blackstone”). The Company has not recorded any expense related to the performance-based portion of the awards, as the achievement of the vesting condition is not yet deemed probable. The fair value of stock-based awards is measured at the grant date and is recognized as expense over the employee’s requisite service period. The grant date fair value was primarily determined using a Monte Carlo simulation valuation approach with the following assumptions: expected volatility varies from 55% to 125% ; expected exercise term between 3.96 and 6.00 years ; and risk-free rates between 0.62% and 1.18% . Vivint Stock Appreciation Rights The Company’s subsidiary, Vivint Group, Inc. (“Vivint Group”), has awarded Stock Appreciation Rights (“SARs”) to various levels of key employees, pursuant to an omnibus incentive plan. The purpose of the SARs is to attract and retain personnel and provide an opportunity to acquire an equity interest of Vivint Group. The SARs are subject to time-based and performance-based vesting conditions, with one-third subject to ratable time-based vesting over a five year period and two-thirds subject to the achievement of certain investment return thresholds by 313. The Company has not recorded any expense related to the performance-based portion of the awards, as the achievement of the vesting condition is not yet deemed probable. In connection with this plan, 31,512,793 SARs were outstanding as of March 31, 2018 . In addition, 53,621,891 SARs have been set aside for funding incentive compensation pools pursuant to long-term incentive plans established by the Company. On April 1, 2015, a new plan was created and all issued and outstanding Vivint, Inc. (“Vivint”) SARs were re-granted and all reserved SARs were converted under the new Vivint Group plan. The Company assessed the conversion of the SARs as a modification of equity instruments. The restructuring did not change the fair value of the existing awards and as such, no incremental compensation expense was incurred as a result of the restructuring. The fair value of the Vivint Group awards is measured at the grant date and is recognized as expense over the employee’s requisite service period. The fair value is determined using a Black-Scholes option valuation model with the following assumptions: expected volatility varies from 55% to 125% , expected dividends of 0% ; expected exercise term between 6.00 and 6.47 years ; and risk-free rates between 0.61% and 1.77% . Due to the lack of historical exercise data, the Company used the simplified method in determining the estimated exercise term, for all Vivint Group awards. Wireless Stock Appreciation Rights The Company’s subsidiary, Vivint Wireless, has awarded SARs to various key employees, pursuant to an omnibus incentive plan. The purpose of the SARs is to attract and retain personnel and provide an opportunity to acquire an equity interest of Vivint Wireless. The SARs are subject to a five year time-based ratable vesting period. In connection with this plan, 10,000 SARs were outstanding as of March 31, 2018 . The Company does not intend to issue any additional Wireless SARs. The fair value of the Vivint Wireless awards is measured at the grant date and is recognized as expense over the employee’s requisite service period. The fair value is determined using a Black-Scholes option valuation model with the following assumptions: expected volatility of 65% , expected dividends of 0% ; expected exercise term between 6.00 and 6.50 years ; and risk-free rates between 1.51% and 1.77% . Due to the lack of historical exercise data, the Company used the simplified method in determining the estimated exercise term, for all Vivint Wireless awards. Stock-based compensation expense in connection with all stock-based awards is presented as follows (in thousands): Three Months Ended March 31, 2018 2017 Operating expenses $ 18 $ 19 Selling expenses 45 54 General and administrative expenses 141 354 Total stock-based compensation $ 204 $ 427

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	COMMITMENTS AND CONTINGENCIES Indemnification – Subject to certain limitations, the Company is obligated to indemnify its current and former directors, officers and employees with respect to certain litigation matters and investigations that arise in connection with their service to the Company. These obligations arise under the terms of its certificate of incorporation, its bylaws, applicable contracts, and Delaware and California law. The obligation to indemnify generally means that the Company is required to pay or reimburse these individuals’ reasonable legal expenses and possibly damages and other liabilities incurred in connection with these matters. Legal – The Company is named from time to time as a party to lawsuits arising in the ordinary course of business related to its sales, marketing, and the provision of its services and equipment claims. Actions filed against the Company include commercial, intellectual property, customer, and labor and employment related claims, including complaints of alleged wrongful termination and potential class action lawsuits regarding alleged violations of federal and state wage and hour and other laws. In general, litigation can be expensive and disruptive to normal business operations. Moreover, the results of legal proceedings are difficult to predict and the costs incurred in litigation can be substantial. The Company believes the amounts provided in its financial statements are adequate in light of the probable and estimated liabilities. Factors that the Company considers in the determination of the likelihood of a loss and the estimate of the range of that loss in respect of legal matters include the merits of a particular matter, the nature of the matter, the length of time the matter has been pending, the procedural posture of the matter, how the Company intends to defend the matter, the likelihood of settling the matter and the anticipated range of a possible settlement. Because such matters are subject to many uncertainties, the ultimate outcomes are not predictable and there can be no assurances that the actual amounts required to satisfy alleged liabilities from the matters described above will not exceed the amounts reflected in the Company’s financial statements or that the matters will not have a material adverse effect on the Company’s results of operations, financial condition or cash flows. The Company regularly reviews outstanding legal claims and actions to determine if reserves for expected negative outcomes of such claims and actions are necessary. The Company had reserves for all such matters of approximately $2.4 million and $2.2 million as of March 31, 2018 and December 31, 2017 , respectively. In conjunction with one of the settlements, the Company is obligated to pay certain future royalties, based on sales of future products. Operating Leases —The Company leases office and warehouse space, certain equipment, towers, wireless spectrum, software and an aircraft under operating leases with related and unrelated parties expiring in various years through 2028 . The leases require the Company to pay additional rent for increases in operating expenses and real estate taxes and contain renewal options. The Company's operating lease arrangements and related terms consisted of the following (in thousands): Rent Expense For the three months ended, March 31, 2018 March 31, 2017 Lease Term Arrangement Warehouse, office space and other $ 3,304 $ 2,935 11 - 15 years Wireless towers and spectrum 1,044 1,182 1 - 10 years Total Rent Expense $ 4,348 $ 4,117 Capital Leases —The Company also enters into certain capital leases with expiration dates through April 2022 . On an ongoing basis, the Company enters into vehicle lease agreements under a Fleet Lease Agreement. The lease agreements are typically 36 month leases for each vehicle and the average remaining life for the fleet is 17 months , as of March 31, 2018 . As of March 31, 2018 and December 31, 2017 , the capital lease obligation balance was $21.7 million and $21.7 million , respectively. Build-to-Suit Lease Arrangements —In April 2017, construction on the Logan Facility was completed and the Company commenced occupancy. The building asset totaled $8.3 million and $8.3 million , respectively, net of accumulated depreciation of $0.6 million and $0.3 million , respectively, as of March 31, 2018 and December 31, 2017 .

Related Party Transactions

Related Party Transactions	3 Months Ended
	Mar. 31, 2018
Related Party Transactions [Abstract]
Related Party Transactions	RELATED PARTY TRANSACTIONS Transactions with Vivint Solar The Company and Vivint Solar, Inc. (“Solar”) have entered into agreements under which the Company provided certain ongoing administrative services to Solar through September 2017, and the Sales Dealer Agreement (as defined below). During the three months ended March 31, 2018 and 2017 , the Company charged $1.0 million and $0.5 million , respectively, of expenses to Solar in connection with these agreements. The balance due from Solar in connection with these agreements and other expenses paid on Solar’s behalf was $0.5 million , and $0.2 million at March 31, 2018 and December 31, 2017 , respectively, and is included in prepaid expenses and other current assets in the accompanying condensed consolidated balance sheets. In connection with Solar’s initial public offering in 2014, the Company entered into a number of agreements with Solar related to services and other support that it has provided and will provide to Solar including: • A Master Intercompany Framework Agreement which establishes a framework for the ongoing relationship between the Company and Solar and contains master terms regarding the protection of each other’s confidential information, and master procedural terms, such as notice procedures, restrictions on assignment, interpretive provisions, governing law and dispute resolution; • A Non-Competition Agreement in which the Company and Solar each define their current areas of business and their competitors, and agree not to directly or indirectly engage in the other’s business for three years; • A Transition Services Agreement pursuant to which the Company will provide to Solar various enterprise services, including services relating to information technology and infrastructure, human resources and employee benefits, administration services and facilities-related services; • A Marketing and Customer Relations Agreement which governs various cross-marketing initiatives between the Company and Solar, in particularly the provision of sales leads from each company to the other; and • A Trademark License Agreement pursuant to which the licensor, a special purpose subsidiary majority-owned by the Company and minority-owned by Solar, will grant Solar a royalty-free exclusive license to the trademark “VIVINT SOLAR” in the field of selling renewable energy or energy storage products and services. In 2016, the Company and Solar amended the Marketing and Customer Relations Agreement to update certain terms and conditions governing existing cross-marketing initiatives and to implement new cross-marketing initiatives, including a pilot program with the purpose of exploring potential opportunities for each company to offer, sell and integrate the other company’s respective products and services with its standard product offering. In 2017, the Company and Solar entered into a Sales Dealer Agreement (the “Sales Dealer Agreement”), pursuant to which each party will act as a non-exclusive dealer for the other party to market, promote and sell each other’s products. The agreement has an initial two-year term, which will be automatically renewed for successive one-year terms unless written notice of termination is provided by one of the parties to the other no less than 90 days prior to the end of the then current term. The products, territories and consideration that is payable by each party to the other will be determined in accordance with the agreement. The Sales Dealer Agreement governs and replaces substantially all of the activities that were previously undertaken under the Marketing and Customer Relations Agreement described above, including the pilot program. The Company and Solar also agreed to extend the term of the non-solicitation provisions under the existing Non-Competition Agreement to match the term of the Sales Dealer Agreement. Other Related-party Transactions Long-term notes recievables and other assets, includes amounts due for non-interest bearing advances made to employees that are expected to be repaid in excess of one year. Amounts due from employees as of both March 31, 2018 and December 31, 2017 , amounted to approximately $0.3 million . As of March 31, 2018 and December 31, 2017 , this amount was fully reserved. Prepaid expenses and other current assets at March 31, 2018 and December 31, 2017 included a receivable for $0.4 million and $0.5 million , respectively, from certain members of management in regards to their personal use of the corporate jet. The Company incurred additional expenses of $0.6 million and $0.3 million during the three months ended March 31, 2018 and 2017 , respectively, for other related-party transactions including contributions to the charitable organization Vivint Gives Back, legal fees, and other services. Accrued expenses and other current liabilities at March 31, 2018 and December 31, 2017 , included a payables of $0.4 million and $1.4 million , respectively. On November 16, 2012, the Company was acquired by an investor group comprised of certain investment funds affiliated with Blackstone Capital Partners VI L.P., and certain co-investors and management investors through certain mergers and related reorganization transactions (collectively, the “Merger”). In connection with the Merger, the Company engaged Blackstone Management Partners L.L.C. (“BMP”) to provide monitoring, advisory and consulting services on an ongoing basis. In consideration for these services, the Company agreed to pay an annual monitoring fee equal to the greater of (i) a minimum base fee of $2.7 million , subject to adjustments if the Company engages in a business combination or disposition that is deemed significant and (ii) the amount of the monitoring fee paid in respect of the immediately preceding fiscal year, without regard to any post-fiscal year “true-up” adjustments as determined by the agreement. The Company incurred expenses for such services of approximately $1.2 million and $1.2 million during the three months ended March 31, 2018 and 2017 , respectively. Accrued expenses and other current liabilities at March 31, 2018 included a liability for $1.9 million to BMP in regards to the monitoring fee. Under the support and services agreement, the Company also engaged BMP to arrange for Blackstone’s portfolio operations group to provide support services customarily provided by Blackstone’s portfolio operations group to Blackstone’s private equity portfolio companies of a type and amount determined by such portfolio services group to be warranted and appropriate. BMP will invoice the Company for such services based on the time spent by the relevant personnel providing such services during the applicable period but in no event shall the Company be obligated to pay more than $1.5 million during any calendar year. During the three months ended March 31, 2018 and 2017 the Company incurred no costs associated with such services. Blackstone Advisory Partners L.P. participated as one of the initial purchasers in the issuance of 2022 notes in February 2017 and received approximately $0.2 million of fees at the time of closing of such issuance. From time to time, the Company does business with a number of other companies affiliated with Blackstone. Transactions involving related parties cannot be presumed to be carried out at an arm’s-length basis.

Employee Benefit Plan

Employee Benefit Plan	3 Months Ended
	Mar. 31, 2018
Postemployment Benefits [Abstract]
Employee Benefit Plan	EMPLOYEE BENEFIT PLAN The Company offers eligible employees the opportunity to contribute a percentage of their earned income into company-sponsored 401(k) plans. Beginning in January 2018, participants in the 401(k) plans are eligible for the Company's matching program. Under this new matching program, the Company matches an employee’s contributions to the 401(k) savings plan dollar-for-dollar up to 1% of such employee’s eligible earnings and $0.50 for every $1.00 for the next 5% of such employee’s eligible earnings. The maximum match available under the 401(k) plan is 3.5% of the employee’s eligible earnings. For employees who have been employed by the Company for less than two years, matching contributions vest on the second anniversary of their date of hire. The Company's matching contributions to employees who have been employed by the Company for two years or more are fully vested. Matching contributions that were made to the plans during the three months ended March 31, 2018 totaled $1.6 million . No matching contributions were made to the plans during the three months ended March 31, 2017 .

Restructuring and Asset Impairm

Restructuring and Asset Impairment Charges	3 Months Ended
	Mar. 31, 2018
Restructuring and Related Activities [Abstract]
Restructuring and Asset Impairment Charges	RESTRUCTURING AND ASSET IMPAIRMENT CHARGES During the year ended December 31, 2015, the board of directors approved a plan to transition the Company’s Wireless Internet business from a 5Ghz to a 60Ghz-based network technology (the “Wireless Restructuring”) and the Company ceased the build-out of 5Ghz networks and stopped the installation of new customers. During 2016, the Company shifted to test installations of the new 60Ghz technology. In connection with the Wireless Restructuring, the Company recorded restructuring and asset impairment charges consisting of asset impairments, the costs of employee severance, and other contract termination charges. The following table presents accrued restructuring activity for the three months ended March 31, 2018 and the twelve months ended December 31, 2017 (in thousands): Contract termination costs Accrued restructuring balance as of December 31, 2016 $ 649 Cash payments (91 ) Accrued restructuring balance as of December 31, 2017 558 Cash payments (23 ) Accrued restructuring balance as of March 31, 2018 $ 535 Additional charges may be incurred in the future for facility-related or other restructuring activities as the Company continues to align resources to meet the needs of the business.

Segment Reporting and Business

Segment Reporting and Business Concentrations	3 Months Ended
	Mar. 31, 2018
Segment Reporting [Abstract]
Segment Reporting and Business Concentrations	SEGMENT REPORTING AND BUSINESS CONCENTRATIONS For the three months ended March 31, 2018 and 2017 , the Company conducted business through one operating segment, Vivint. The Company primarily operated in two geographic regions: United States and Canada. Revenues disaggregated by geographic region were as follows (in thousands): United States Canada Total Revenue from external customers Three months ended March 31, 2018 $ 228,542 $ 18,055 $ 246,597 Three months ended March 31, 2017 190,030 15,323 205,353

Guarantor and Non-Guarantor Sup

Guarantor and Non-Guarantor Supplemental Financial Information	3 Months Ended
	Mar. 31, 2018
Guarantor And Non Guarantor Supplemental Financial Information [Abstract]
Guarantor and Non-Guarantor Supplemental Financial Information	GUARANTOR AND NON-GUARANTOR SUPPLEMENTAL FINANCIAL INFORMATION The notes were issued by APX and are fully and unconditionally guaranteed, jointly and severally by Holdings and each of APX’s existing and future material wholly-owned U.S. restricted subsidiaries. APX’s existing and future foreign subsidiaries are not expected to guarantee the notes. Presented below is the condensed consolidating financial information of APX, subsidiaries of APX that are guarantors (the “Guarantor Subsidiaries”), and APX’s subsidiaries that are not guarantors (the “Non-Guarantor Subsidiaries”) as of March 31, 2018 and December 31, 2017 and for the three months ended March 31, 2018 and 2017 . The unaudited condensed consolidating financial information reflects the investments of APX in the Guarantor Subsidiaries and the Non-Guarantor Subsidiaries using the equity method of accounting. Supplemental Condensed Consolidating Balance Sheet March 31, 2018 (in thousands) (unaudited) Parent APX Group, Inc. Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Assets Current assets $ — $ 3,679 $ 290,690 $ 64,345 $ (187,398 ) $ 171,316 Property, plant and equipment, net — — 78,995 649 — 79,644 Capitalized contract costs, net — — 941,337 66,988 — 1,008,325 Deferred financing costs, net — 2,839 — — — 2,839 Investment in subsidiaries — 1,877,486 — — (1,877,486 ) — Intercompany receivable — — 6,303 — (6,303 ) — Intangible assets, net — — 298,803 24,430 — 323,233 Goodwill — — 809,678 26,622 — 836,300 Long-term notes receivables and other assets — 106 87,029 10,609 (106 ) 97,638 Total Assets $ — $ 1,884,110 $ 2,512,835 $ 193,643 $ (2,071,293 ) $ 2,519,295 Liabilities and Stockholders’ (Deficit) Equity Current liabilities $ — $ 67,965 $ 370,099 $ 140,780 $ (187,398 ) $ 391,446 Intercompany payable — — — 6,303 (6,303 ) — Notes payable and revolving credit facility, net of current portion — 2,838,380 — — — 2,838,380 Capital lease obligations, net of current portion — — 10,873 192 — 11,065 Deferred revenue, net of current portion — — 217,757 12,221 — 229,978 Other long-term obligations — — 61,842 — — 61,842 Accumulated losses of investee, net 1,022,235 (1,022,235 ) — Deferred income tax liability — — 106 8,819 (106 ) 8,819 Total (deficit) equity (1,022,235 ) (1,022,235 ) 1,852,158 25,328 (855,251 ) (1,022,235 ) Total liabilities and stockholders’ (deficit) equity $ — $ 1,884,110 $ 2,512,835 $ 193,643 $ (2,071,293 ) $ 2,519,295 Supplemental Condensed Consolidating Balance Sheet December 31, 2017 (in thousands) Parent APX Group, Inc. Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Assets Current assets $ — $ 4,150 $ 284,293 $ 49,935 $ (162,413 ) $ 175,965 Property, plant and equipment, net — — 77,345 736 — 78,081 Subscriber acquisition costs, net — — 1,214,678 93,880 — 1,308,558 Deferred financing costs, net — 3,099 — — — 3,099 Investment in subsidiaries — 2,188,221 — — (2,188,221 ) — Intercompany receivable — — 6,303 — (6,303 ) — Intangible assets, net — — 350,710 26,741 — 377,451 Goodwill — — 809,678 27,292 — 836,970 Long-term notes receivables and other assets — 106 78,173 10,550 (106 ) 88,723 Total Assets $ — $ 2,195,576 $ 2,821,180 $ 209,134 $ (2,357,043 ) $ 2,868,847 Liabilities and Stockholders’ (Deficit) Equity Current liabilities $ — $ 28,805 $ 343,398 $ 128,581 $ (162,413 ) $ 338,371 Intercompany payable — — — 6,303 (6,303 ) — Notes payable and revolving credit facility, net of current portion — 2,820,297 — — — 2,820,297 Capital lease obligations, net of current portion — — 10,791 298 — 11,089 Deferred revenue, net of current portion — — 248,643 15,912 — 264,555 Accumulated Losses of Investee, net 653,526 (653,526 ) — Other long-term obligations — — 79,020 — — 79,020 Deferred income tax liability — — 106 9,041 (106 ) 9,041 Total (deficit) equity (653,526 ) (653,526 ) 2,139,222 48,999 (1,534,695 ) (653,526 ) Total liabilities and stockholders’ (deficit) equity $ — $ 2,195,576 $ 2,821,180 $ 209,134 $ (2,357,043 ) $ 2,868,847 Supplemental Condensed Consolidating Statements of Operations and Comprehensive Loss For the Three Months Ended March 31, 2018 (in thousands) (unaudited) Parent APX Group, Inc. Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Revenues $ — $ — $ 233,788 $ 13,465 $ (656 ) $ 246,597 Costs and expenses — — 305,221 13,663 (656 ) 318,228 Loss from operations — — (71,433 ) (198 ) — (71,631 ) Loss from subsidiaries (84,717 ) (26,320 ) — — 111,037 — Other expense (income), net — 58,397 (46,970 ) 2,092 — 13,519 Loss before income tax expenses (84,717 ) (84,717 ) (24,463 ) (2,290 ) 111,037 (85,150 ) Income tax expense (benefit) — — 172 (605 ) — (433 ) Net loss (84,717 ) (84,717 ) (24,635 ) (1,685 ) 111,037 (84,717 ) Other comprehensive loss, net of tax effects: Net loss (84,717 ) (84,717 ) (24,635 ) (1,685 ) 111,037 (84,717 ) Foreign currency translation adjustment (659 ) (659 ) — (659 ) 1,318 (659 ) Total other comprehensive loss (659 ) (659 ) — (659 ) 1,318 (659 ) Comprehensive loss $ (85,376 ) $ (85,376 ) $ (24,635 ) $ (2,344 ) $ 112,355 $ (85,376 ) Supplemental Condensed Consolidating Statements of Operations and Comprehensive Loss For the Three Months Ended March 31, 2017 (in thousands) (unaudited) Parent APX Group, Inc. Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Revenues $ — $ — $ 193,968 $ 12,060 $ (675 ) $ 205,353 Costs and expenses — — 212,741 9,814 (675 ) 221,880 (Loss) income from operations — — (18,773 ) 2,246 — (16,527 ) Loss from subsidiaries (82,636 ) (17,209 ) — — 99,845 — Other expense (income), net — 65,427 938 (675 ) — 65,690 (Loss) income before income tax expenses (82,636 ) (82,636 ) (19,711 ) 2,921 99,845 (82,217 ) Income tax (benefit) expense — — (362 ) 781 — 419 Net (loss) income (82,636 ) (82,636 ) (19,349 ) 2,140 99,845 (82,636 ) Other comprehensive loss, net of tax effects: — Net (loss) income (82,636 ) (82,636 ) (19,349 ) 2,140 99,845 (82,636 ) Foreign currency translation adjustment — 412 — 411 (411 ) 412 Unrealized gain on marketable securities — 143 143 — (143 ) 143 Total other comprehensive income — 555 143 411 (554 ) 555 Comprehensive (loss) income $ (82,636 ) $ (82,081 ) $ (19,206 ) $ 2,551 $ 99,291 $ (82,081 ) Supplemental Condensed Consolidating Statements of Cash Flows For the Three Months Ended March 31, 2018 (in thousands) (unaudited) Parent APX Group, Inc. Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Cash flows from operating activities: Net cash used in operating activities $ — $ — $ (59,159 ) $ (423 ) $ — $ (59,582 ) Cash flows from investing activities: Subscriber acquisition costs – company owned equipment — — — — — — Capital expenditures — — (6,407 ) — — (6,407 ) Proceeds from sale of intangibles — — 53,693 — — 53,693 Proceeds from sale of capital assets — — 149 — — 149 Investment in subsidiary 966 (16,450 ) — — 15,484 — Acquisition of intangible assets — — (849 ) — — (849 ) Net cash provided by (used in) investing activities 966 (16,450 ) 46,586 — 15,484 46,586 Cash flows from financing activities: Borrowings from revolving credit facility — 57,000 — — — 57,000 Repayments on revolving credit facility — (40,000 ) — — — (40,000 ) Proceeds from capital contribution — — 17,416 — (17,416 ) — Intercompany receivable — — — — — — Intercompany payable — — — — — — Repayments of capital lease obligations — — (3,305 ) (113 ) — (3,418 ) Return of capital (966 ) (966 ) (966 ) — 1,932 (966 ) Net cash (used in) provided by financing activities (966 ) 16,034 13,145 (113 ) (15,484 ) 12,616 Effect of exchange rate changes on cash — — — (19 ) — (19 ) Net (decrease) increase in cash and cash equivalents — (416 ) 572 (555 ) — (399 ) Cash and cash equivalents: Beginning of period — 3,661 (572 ) 783 — 3,872 End of period $ — $ 3,245 $ — $ 228 $ — $ 3,473 Supplemental Condensed Consolidating Statements of Cash Flows For the Three Months Ended March 31, 2017 (in thousands) (unaudited) Parent APX Group, Inc. Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Cash flows from operating activities: Net cash (used in) provided by operating activities $ — $ — $ (9,747 ) $ 3,594 $ — $ (6,153 ) Cash flows from investing activities: Capital expenditures — — (7,526 ) — — (7,526 ) Investment in subsidiary — 5,202 — — (5,202 ) — Acquisition of intangible assets — — (623 ) — — (623 ) Proceeds from sale of capital assets — — 239 — — 239 Acquisition of other assets — — (126 ) — — (126 ) Net cash provided by (used in) investing activities — 5,202 (8,036 ) — (5,202 ) (8,036 ) Cash flows from financing activities: Proceeds from notes payable — 324,750 — — — 324,750 Repayment on notes payable — (300,000 ) — — — (300,000 ) Intercompany receivable — — 3,189 — (3,189 ) — Intercompany payable — — (5,202 ) (3,189 ) 8,391 — Repayments of capital lease obligations — — (2,275 ) (86 ) — (2,361 ) Financing costs — (8,951 ) — — — (8,951 ) Deferred financing costs — (5,537 ) — — — (5,537 ) Net cash provided by (used in) financing activities — 10,262 (4,288 ) (3,275 ) 5,202 7,901 Effect of exchange rate changes on cash — — — (7 ) — (7 ) Net increase (decrease) in cash and cash equivalents — 15,464 (22,071 ) 312 — (6,295 ) Cash and cash equivalents: Beginning of period — 24,680 18,186 654 — 43,520 End of period $ — $ 40,144 $ (3,885 ) $ 966 $ — $ 37,225

Basis of Presentation and Sig24

Basis of Presentation and Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2018
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation —The unaudited condensed consolidated financial statements of the Company are presented for APX Group Holdings, Inc. (“Holdings") and its wholly-owned subsidiaries. The Company has prepared the accompanying unaudited condensed consolidated financial statements pursuant to GAAP. Preparing financial statements requires the Company to make estimates and assumptions that affect the amounts that are reported in the consolidated financial statements and accompanying disclosures. Although these estimates are based on the Company’s best knowledge of current events and actions that the Company may undertake in the future, actual results may be different from the Company’s estimates. The results of operations presented herein are not necessarily indicative of the Company’s results for any future period.
Vivint Flex Pay	Vivint Flex Pay —In January 2017, the Company announced the introduction of the Vivint Flex Pay plan (“Vivint Flex Pay”), which became the Company's primary sales model beginning in March 2017. Under Vivint Flex Pay, customers pay separately for the products (including control panel, security peripheral equipment, smart home equipment, and related installation) (“Products”) and Vivint's smart home and security services (“Services”). The customer has the following three options to pay for the Products: (1) qualified customers in the United States may finance the purchase of Products through a third-party financing provider (“Consumer Financing Program”) (2) customers not eligible for the Consumer Financing Program, but who qualify under the Company's underwriting criteria, may enter into a retail installment contract (“RIC”) directly with Vivint, or (3) customers may purchase the Products at the outset of the service contract with cash, automatic clearing house payments (“ACH”), credit or debit card. Although customers pay separately for the Products and Services under the Vivint Flex Pay plan, the Company has determined that the shift in model does not change the Company's conclusion that the Product sales and Services are one single performance obligation. As a result, all forms of transactions under Vivint Flex Pay create deferred revenue for the gross amount of Products sold. Gross deferred revenues are reduced by imputed interest on the RICs and the present value of expected payments due to the third-party financing provider under the Consumer Financing Program. Under the Consumer Financing Program, qualified customers are eligible for installment loans provided by a third-party financing provider of up to $4,000 for either 42 or 60 months. The Company pays a monthly fee to the third-party financing provider based on the average daily outstanding balance of the installment loans. Additionally, the Company shares liability for credit losses depending on the credit quality of the customer. Because of the nature of these provisions under the Consumer Financing Program, the Company records a derivative liability at its fair value when the third-party financing provider originates installment loans to customers, which reduces the amount of revenue recognized on the provision of the services. The derivative liability is reduced as payments are made from the Company to the third-party financing provider. Subsequent changes to the fair value of the derivative liability are realized through other loss/(income), net in the Condensed Consolidated Statement of Operations. (See Note 8 ).
Retail Installment Contract Receivables	Retail Installment Contract Receivables — For customers that enter into a RIC under the Vivint Flex Pay plan, the Company records a receivable for the amount financed. The RIC receivables are recorded at their present value, net of the imputed interest. At the time of installation, the Company records a long-term note receivable within long-term notes receivables and other assets, net on the condensed consolidated balance sheets for the present value of the receivables that are expected to be collected beyond 12 months of the reporting date. The unbilled receivable amounts that are expected to be collected within 12 months of the reporting date are included as a short-term notes receivable within accounts and notes receivable, net on the condensed consolidated balance sheets. The billed amounts of notes receivables are included in accounts receivable within accounts and notes receivable, net on the condensed consolidated balance sheets. The Company imputes the interest on the RIC receivable using a risk adjusted market interest rate and records it as an adjustment to deferred revenue and as an adjustment to the face amount of the related receivable. The imputed interest discount considers a number of factors, including collection experience, aging of the remaining RIC receivable portfolios, credit quality of the subscriber base and other qualitative considerations, including macro-economic factors. The imputed interest income is recognized over the term of the RIC contract as recurring and other revenue on the condensed consolidated statement of operations. When the Company determines that there are RIC receivables that have become uncollectible, the Company records an adjustment to the imputed interest discount and reduce the related note receivable balance. Account balances are written-off if collection efforts are unsuccessful and future collection is unlikely based on the length of time from the day accounts become past due.
Accounts Receivable	Accounts Receivable — Accounts receivable consists primarily of amounts due from customers for recurring monthly monitoring services and the billed portion of RIC receivables. The accounts receivable are recorded at invoiced amounts and are non-interest bearing and are included within accounts and notes receivable, net on the condensed consolidated balance sheets. Accounts receivable totaled $20.8 million and $24.3 million at March 31, 2018 and December 31, 2017 , respectively net of the allowance for doubtful accounts of $4.2 million and $5.4 million at March 31, 2018 and December 31, 2017 , respectively. The Company estimates this allowance based on historical collection experience and subscriber attrition rates. When the Company determines that there are accounts receivable that are uncollectible, they are charged off against the allowance for doubtful accounts. As of March 31, 2018 and December 31, 2017 , no accounts receivable were classified as held for sale. The provision for doubtful accounts is included in general and administrative expenses in the accompanying unaudited condensed consolidated statements of operations and totaled $4.0 million and $4.7 million for the three months ended March 31, 2018 and 2017 , respectively.
Revenue Recognition	Revenue Recognition— The Company offers its customers a smart home service combining home automation equipment, including a proprietary control panel, door and window sensors, door locks, security cameras and smoke alarms; installation; and a proprietary back-end cloud platform software and services. These together create an integrated system that allows the Company’s customers to monitor, control and protect their home (“Smart Home Services”). The Company’s customers are buying this integrated system that provides them with these Smart Home Services. The number and type of home automation devices purchased by a customer depends on their desired functionality. Because the equipment and services included in the customer’s contract are integrated and highly interdependent, and because they must work together to deliver the Smart Home Services, the Company has concluded that installed equipment, related installation and Smart Home Services contracted for by the customer are generally not distinct within the context of the contract and, therefore, constitute a single, combined performance obligation. Revenues for this single, combined performance obligation are recognized on a straight-line basis over the customer’s contract term. The Company has determined that certain contracts that do not require a long-term commitment for monitoring services by the customer contain a material right to renew the contract, because the customer does not have to purchase equipment upon renewal. Proceeds allocated to the material right are recognized over the period benefit, which is generally three years. The majority of the Company’s subscription contracts are between three and five years in length and are non-cancelable. These contracts with customers generally convert into month-to-month agreements at the end of the initial term, and some customer contracts are month-to-month from inception. Payment for recurring monitoring and other Smart Home Services is generally due in advance on a monthly basis. Sales of products and other one-time fees such as service fees or activation fees are invoiced to the customer at the time of sale. Revenues for wireless internet service provided by Vivint Wireless Inc. (“Wireless Internet” or “Wireless”) and any products or services that are considered separate performance obligations are recognized when those products or services are delivered. Taxes collected from customers and remitted to governmental authorities are not included in revenue. Payments received or amounts billed in advance of revenue recognition are reported as deferred revenue.
Deferred Revenue	Deferred Revenue— The Company's deferred revenues primarily consist of amounts for sales (including cash sales) of Smart Home Services. Deferred revenues are recognized over the term of the related performance obligation.
Subscriber Acquisition Costs	Capitalized Contract Costs — Capitalized contract costs represent the costs directly related and incremental to the origination of new contracts, modification of existing contracts or to the fulfillment of the related customer contracts. These include commissions, other compensation and related costs paid directly for the generation and installation of new or upgraded customer contracts, as well as the cost of equipment installed in the customer home at the commencement or modification of the contract. These costs are deferred and amortized on a straight-line basis over the expected period of benefit that the Company has determined to be five years . Amortization of capitalized contract costs is included in “Depreciation and Amortization” on the consolidated statements of operations. These deferred costs are periodically reviewed for impairment. Contract costs not directly related and incremental to the origination of new contracts, modification of existing contracts or to the fulfillment of the related customer contracts are expensed as incurred. These costs include those associated with housing for direct-to-home sales representatives, marketing and recruiting, certain portions of sales commissions and residuals, overhead and other costs considered not directly and specifically tied to the origination of a particular subscriber. On the condensed consolidated statement of cash flows, capitalized contract costs are classified as operating activities and reported as “Capitalized contract costs – deferred contract costs” as these assets represent deferred costs associated with customer contracts.
Cash and Cash Equivalents	Cash and Cash Equivalents— Cash and cash equivalents consists of highly liquid investments with remaining maturities when purchased of three months or less.
Inventories	Inventories —Inventories, which are comprised of smart home and security system equipment and parts, are stated at the lower of cost or net realizable value with cost determined under the first-in, first-out (FIFO) method. The Company adjusts the inventory balance based on anticipated obsolescence, usage and historical write-offs.
Long-lived Assets and Intangibles, Property, Plant and Equipment	Long-lived Assets and Intangibles — Property, plant and equipment are stated at cost and depreciated on the straight-line method over the estimated useful lives of the assets or the lease term for assets under capital leases, whichever is shorter. Intangible assets with definite lives are amortized over the remaining estimated economic life of the underlying technology or relationships, which ranges from five to ten years . Definite-lived intangible assets are amortized on the straight-line method over the estimated useful life of the asset or in a pattern in which the economic benefits of the intangible asset are consumed. Amortization expense associated with leased assets is included with depreciation expense. Routine repairs and maintenance are charged to expense as incurred. The Company reviews long-lived assets, including property, plant and equipment, capitalized contract costs, and definite-lived intangibles for impairment when events or changes in circumstances indicate that the carrying amount may not be recoverable. The Company considers whether or not indicators of impairment exist on a regular basis and as part of each quarterly and annual financial statement close process. Factors the Company considers in determining whether or not indicators of impairment exist include market factors and patterns of customer attrition. If indicators of impairment are identified, the Company estimates the fair value of the assets. An impairment loss is recognized if the carrying amount of a long-lived asset is not recoverable and exceeds its fair value.
Long-lived Assets and Intangibles, Intangible Assets	Long-lived Assets and Intangibles — Property, plant and equipment are stated at cost and depreciated on the straight-line method over the estimated useful lives of the assets or the lease term for assets under capital leases, whichever is shorter. Intangible assets with definite lives are amortized over the remaining estimated economic life of the underlying technology or relationships, which ranges from five to ten years . Definite-lived intangible assets are amortized on the straight-line method over the estimated useful life of the asset or in a pattern in which the economic benefits of the intangible asset are consumed. Amortization expense associated with leased assets is included with depreciation expense. Routine repairs and maintenance are charged to expense as incurred. The Company reviews long-lived assets, including property, plant and equipment, capitalized contract costs, and definite-lived intangibles for impairment when events or changes in circumstances indicate that the carrying amount may not be recoverable. The Company considers whether or not indicators of impairment exist on a regular basis and as part of each quarterly and annual financial statement close process. Factors the Company considers in determining whether or not indicators of impairment exist include market factors and patterns of customer attrition. If indicators of impairment are identified, the Company estimates the fair value of the assets. An impairment loss is recognized if the carrying amount of a long-lived asset is not recoverable and exceeds its fair value. The Company conducts an indefinite-lived intangible impairment analysis annually as of October 1, and as necessary if changes in facts and circumstances indicate that the fair value of the Company’s indefinite-lived intangibles may be less than the carrying amount. When indicators of impairment do not exist and certain accounting criteria are met, the Company is able to evaluate indefinite-lived intangible impairment using a qualitative approach. When necessary, the Company’s quantitative impairment test consists of two steps. The first step requires that the Company compare the estimated fair value of its indefinite-lived intangibles to the carrying value. If the fair value is greater than the carrying value, the intangibles are not considered to be impaired and no further testing is required. If the fair value is less than the carrying value, an impairment loss in an amount equal to the difference is recorded. Wireless Spectrum Licenses —The Company had capitalized, as an intangible asset, wireless spectrum licenses that its subsidiary, Vivint Wireless, acquired from a third party. The cost basis of the wireless spectrum asset included the purchase price paid for the licenses at the time of acquisition, plus costs incurred to acquire the licenses. The asset and related liability were recorded at the net present value of future cash outflows using the Company's incremental borrowing rate at the time of acquisition. The Company determined that the wireless spectrum licenses met the definition of indefinite-lived intangible assets because the licenses were able to be renewed periodically for a nominal fee, provided that the Company continued to meet the service and geographic coverage provisions. During the three months ended March 31, 2018, the Company terminated the wireless spectrum licenses for cash consideration.
Long-term Investments	Long-term Investments —The Company’s long-term investments are comprised of equity securities in both privately held and public companies. As of March 31, 2018 and December 31, 2017 , the Company's equity investments totaled $3.8 million and $3.4 million , respectively. Management determines the appropriate fair value measurement of its investments at the time of purchase and reevaluates the fair value measurement at each balance sheet date. Equity securities are classified as either short-term or long-term, based on the nature of each security and its availability for use in current operations. The Company’s equity securities are carried at fair value, with gains and losses reported in other income or loss within the statement of operations. The Company's equity investments without readily determinable fair values totaled $0.7 million and $0.7 million as of March 31, 2018 and December 31, 2017 , respectively. The Company performs impairment analyses of its investments without readily determinable fair values when events occur or circumstances change that would, more likely than not, reduce the fair value of the investment below its carrying value. When indicators of impairment do not exist and certain accounting criteria are met, the Company evaluates impairment using a qualitative approach. Additionally, changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer are adjusted as needed. As of March 31, 2018 and December 31, 2017 , no indicators of impairment existed associated with investments without readily determinable fair values.
Deferred Financing Costs	Deferred Financing Costs —Costs incurred in connection with obtaining debt financing are deferred and amortized utilizing the straight-line method, which approximates the effective-interest method, over the life of the related financing. Deferred financing costs incurred with draw downs on APX Group, Inc.’s (“APX”) revolving credit facility will be amortized over the amended maturity dates discussed in Note 3 . If such financing is paid off or replaced prior to maturity with debt instruments that have substantially different terms, the unamortized costs are charged to expense.
Residual Income Plan	Residual Income Plan —The Company has a program that allows certain third-party sales channel partners to receive additional compensation based on the performance of the underlying contracts they create. The Company calculates the present value of the expected future payments and recognizes this amount in the period the commissions are earned. Subsequent accretion and adjustments to the estimated liability are recorded as interest and operating expense, respectively. The Company monitors actual payments and customer attrition on a periodic basis and, when necessary, makes adjustments to the liability.
Stock-Based Compensation	Stock-Based Compensation —The Company measures compensation costs based on the grant-date fair value of the award and recognizes that cost over the requisite service period of the awards (See Note 10 ).
Advertising Expense	Advertising Expense —Advertising costs are expensed as incurred.
Income Taxes	Income Taxes —The Company accounts for income taxes based on the asset and liability method. Under the asset and liability method, deferred tax assets and deferred tax liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carryforwards. Valuation allowances are established when necessary to reduce deferred tax assets when it is determined that it is more likely than not that some portion, or all, of the deferred tax asset will not be realized. The Company recognizes the effect of an uncertain income tax position on the income tax return at the largest amount that is more likely than not to be sustained upon audit by the relevant taxing authority. An uncertain income tax position will not be recognized if it has less than a 50% likelihood of being sustained. The Company’s policy for recording interest and penalties is to record such items as a component of the provision for income taxes.
Concentrations of Credit Risk	Concentrations of Credit Risk —Financial instruments that potentially subject the Company to concentration of credit risk consist principally of receivables and cash. At times during the year, the Company maintains cash balances in excess of insured limits. The Company is not dependent on any single customer or geographic location. The loss of a customer would not adversely impact the Company’s operating results or financial position.
Concentrations of Supply Risk	Concentrations of Supply Risk —As of March 31, 2018 , approximately 72% of the Company’s installed panels were SkyControl panels and 26% were 2GIG Go!Control panels. During the three months ended March 31, 2018 the Company transitioned to a new panel supplier. The loss of the Company's panel supplier could potentially impact its operating results or financial position.
Fair Value Measurement	Fair Value Measurement —Fair value is based on the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Assets and liabilities subject to on-going fair value measurement are categorized and disclosed into one of three categories depending on observable or unobservable inputs employed in the measurement. These two types of inputs have created the following fair value hierarchy: Level 1: Quoted prices in active markets that are accessible at the measurement date for assets and liabilities. Level 2: Observable prices that are based on inputs not quoted in active markets, but corroborated by market data. Level 3: Unobservable inputs are used when little or no market data is available. This hierarchy requires the Company to minimize the use of unobservable inputs and to use observable market data, if available, when determining fair value. The Company recognizes transfers between levels of the hierarchy based on the fair values of the respective financial measurements at the end of the reporting period in which the transfer occurred. There were no transfers between levels of the fair value hierarchy during the three months ended March 31, 2018 and 2017 . The carrying amounts of the Company’s accounts receivable, accounts payable and accrued and other liabilities approximate their fair values due to their short maturities.
Goodwill	Goodwill —The Company conducts a goodwill impairment analysis annually in the fourth fiscal quarter, as of October 1, and as necessary if changes in facts and circumstances indicate that the fair value of the Company’s reporting units may be less than their carrying amounts. When indicators of impairment do not exist and certain accounting criteria are met, the Company is able to evaluate goodwill impairment using a qualitative approach. When necessary, the Company’s quantitative goodwill impairment test consists of two steps. The first step requires that the Company compare the estimated fair value of its reporting units to the carrying value of the reporting unit’s net assets, including goodwill. If the fair value of the reporting unit is greater than the carrying value of its net assets, goodwill is not considered to be impaired and no further testing is required. If the fair value of the reporting unit is less than the carrying value of its net assets, the Company would be required to complete the second step of the test by analyzing the fair value of its goodwill. If the carrying value of the goodwill exceeds its fair value, an impairment charge is recorded. The Company’s reporting units are determined based on its current reporting structure, which as of December 31, 2017 and March 31, 2018 consisted of two reporting units. As of March 31, 2018 , there were no changes in facts and circumstances since the most recent annual impairment analysis to indicate impairment existed.
Foreign Currency Translation and Other Comprehensive Income	Foreign Currency Translation and Other Comprehensive Income —The functional currency of Vivint Canada, Inc. is the Canadian dollar. Accordingly, Vivint Canada, Inc. assets and liabilities are translated from their respective functional currencies into U.S. dollars at period-end rates and Vivint Canada, Inc. revenue and expenses are translated at the weighted-average exchange rates for the period. Adjustments resulting from this translation process are classified as other comprehensive income (loss) and shown as a separate component of equity. When intercompany foreign currency transactions between entities included in the consolidated financial statements are of a long term investment nature (i.e., those for which settlement is not planned or anticipated in the foreseeable future) foreign currency translation adjustments resulting from those transactions are included in stockholders’ deficit as accumulated other comprehensive loss or income. When intercompany transactions are deemed to be of a short term nature, translation adjustments are required to be included in the condensed consolidated statement of operations.
Letters of Credit	Letters of Credit —As of March 31, 2018 and December 31, 2017 , the Company had $11.5 million and $9.5 million , respectively, of letters of credit issued in the ordinary course of business, all of which are undrawn.
Restructuring and Asset Impairment Charges	Restructuring and Asset Impairment Charges —Restructuring and asset impairment charges represent expenses incurred in relation to activities to exit or dispose of portions of the Company's business that do not qualify as discontinued operations. Liabilities associated with restructuring are measured at their fair value when the liability is incurred. Expenses for related termination benefits are recognized at the date the Company notifies the employee, unless the employee must provide future service, in which case the benefits are expensed ratably over the future service period. Liabilities related to termination of a contract are measured and recognized at fair value when the contract does not have any future economic benefit to the entity and the fair value of the liability is determined based on the present value of the remaining obligation. The Company expenses all other costs related to an exit or disposal activity as incurred (See Note 14 ).
New Accounting Pronouncements	Recent Accounting Pronouncements —In June 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standard Update (“ASU”) 2016-13, “Financial Instruments—Credit Losses (Topic 326)” which modifies the measurement of expected credit losses of certain financial instruments. This update is effective for fiscal years, and interim periods within those years, beginning after December 15, 2019 and must be applied using a modified-retrospective approach, with early adoption permitted. The Company is evaluating the adoption of ASU 2016-13 and plans to provide additional information about its expected impact at a future date. In February 2016, the FASB issued ASU 2016-02, “Leases (Topic 326)” to increase transparency and comparability among organizations as it relates to lease assets and lease liabilities. The update requires that lease assets and lease liabilities be recognized on the balance sheet, and that key information about leasing arrangements be disclosed. Prior to this update, GAAP did not require operating leases to be recognized as lease assets and lease liabilities on the balance sheet. This update is effective for fiscal years, and interim periods within those years, beginning after December 15, 2018 and must be applied using a modified retrospective approach, with early adoption permitted. The Company is in the initial stages of evaluating the impact of ASU 2016-02 on its accounting policies, processes, and system requirements. The Company’s current operating lease portfolio is primarily comprised of network, real estate, and equipment leases. Upon adoption of this standard, the Company expects the balance sheet to include a right of use asset and liability related to substantially all operating lease arrangements. The Company has assigned internal resources to perform the evaluation. Furthermore, the Company has made and will continue to make investments in systems to enable timely and accurate reporting under the new standard. While the Company continues to assess the potential impacts of ASU 2016-02, including the areas described above, and anticipates this standard could have a material impact on the consolidated financial statements, the Company does not know or cannot reasonably estimate quantitative information related to the impact of the new standard on the financial statements at this time. Recently Adopted Accounting Standards ASU 2016-01 In January 2016, the FASB issued ASU 2016-01, "Financial Instruments-Overall (Subtopic 825-10)" which enhances the reporting model for financial instruments by addressing certain aspects of the recognition, measurement, presentation and disclosure of financial instruments. Key provisions require equity investments (except those accounted for under the equity method of accounting) to be measured at fair value with changes in fair value recognized in net income (loss). In addition, the exit price notion must be used when measuring the fair value of financial instruments for disclosure purposes. ASU 2016-01 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017. The Company adopted ASU 2016-01 on January 1, 2018, with a cumulative-effect adjustment to increase accumulated deficit by $0.7 million for the net unrealized losses within accumulated other comprehensive income related to equity investments. During the three months ended March 31, 2018 , the Company recorded a net gain of $0.3 million to other income associated with the change in fair value of equity investments. ASU 2014-09 In May 2014, the FASB issued ASU 2014-09, “Revenue from Contracts with Customers (Topic 606),” which supersedes the revenue recognition requirements in “Revenue Recognition (Topic 605).” Under Topic 606, revenue is recognized when a customer obtains control of promised goods or services and is recognized in an amount that reflects the consideration which the entity expects to receive in exchange for those goods or services. In addition, Topic 606 requires enhanced disclosures, including disclosure of the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. Topic 606 also includes Subtopic 340-40, Other Assets and Deferred Costs - Contracts with Customers, which requires the deferral of incremental costs of obtaining a contract with a customer. Collectively, the Company refers to Topic 606 and Subtopic 340-40 as the “new standard”. The Company adopted the new standard as of January 1, 2018, utilizing the modified retrospective method of transition (the cumulative catch-up transition method). Adoption of the new standard resulted in changes to the accounting policies for revenue recognition, deferred revenue, and capitalized contract costs (formerly subscriber acquisition costs). The cumulative effect of applying the new standard to all contracts with customers that were not completed as of January 1, 2018 was recorded as an adjustment to accumulated deficit as of the adoption date. The comparative information has not been adjusted and continues to be reported under Topic 605. See Note 2 "Revenue and Capitalized Contract Costs" for additional information related to the impact of adopting this standard and a discussion of the Company's updated policies related to revenue recognition and accounting for costs to obtain and fulfill a customer contract.

Basis of Presentation and Sig25

Basis of Presentation and Significant Accounting Policies (Tables)	3 Months Ended
	Mar. 31, 2018
Accounting Policies [Abstract]
Changes in Company's Allowance for Accounts Receivable	The changes in the Company’s allowance for accounts receivable were as follows for the periods ended (in thousands): Three Months Ended March 31, 2018 Twelve Months Ended December 31, 2017 Beginning balance $ 5,356 $ 4,138 Provision for doubtful accounts 3,968 22,465 Write-offs and adjustments (5,168 ) (21,247 ) Balance at end of period $ 4,156 $ 5,356 The following table summarizes the installment receivables (in thousands): March 31, 2018 December 31, 2017 RIC receivables, gross $ 140,038 $ 131,024 Deferred interest (32,441 ) (36,048 ) RIC receivables, net of deferred interest $ 107,597 $ 94,976 Classified on the condensed consolidated unaudited balance sheets as: Accounts and notes receivable, net $ 20,643 $ 16,469 Long-term notes receivables and other assets, net 86,954 78,507 RIC receivables, net $ 107,597 $ 94,976
Schedule Of Depreciation And Amortization Expense	The Company’s depreciation and amortization included in the consolidated statements of operations consisted of the following (in thousands): Three Months Ended March 31, 2018 2017 Amortization of capitalized contract costs $ 95,363 $ — Amortization of subscriber acquisition costs — 46,878 Amortization of definite-lived intangibles 22,720 25,351 Depreciation of property, plant and equipment 6,175 4,640 Total depreciation and amortization $ 124,258 $ 76,869

Revenue and Capitalized Contr26

Revenue and Capitalized Contract Costs (Tables)	3 Months Ended
	Mar. 31, 2018
Revenue from Contract with Customer [Abstract]
Schedule of New Accounting Pronouncements and Changes in Accounting Principles	As a result of applying the modified retrospective method to adopt the new revenue guidance, the following adjustments were made to select consolidated balance sheet line items as of January 1, 2018 (in thousands): Condensed Consolidated Balance Sheets (unaudited) As Reported Adjustments Adjusted December 31, 2017 January 1, 2018 Assets Capitalized contract costs, net $ — $ 1,020,408 $ 1,020,408 Subscriber acquisition costs, net 1,308,558 (1,308,558 ) — Long-term notes receivables and other assets, net 88,723 2,713 91,436 Liabilities and Stockholders' Deficit Accrued expenses and other current liabilities 74,321 10,329 84,650 Deferred revenue 88,337 39,868 128,205 Deferred revenue, net of current portion 264,555 (53,062 ) 211,493 Accumulated deficit (1,358,571 ) (282,572 ) (1,641,143 ) The following tables compare the select reported consolidated balance sheets, statements of operations and cash flows line items, as of and for the three months ended March 31, 2018 , to the pro-forma amounts had the previous guidance been in effect (in thousands): Condensed Consolidated Balance Sheets (unaudited) March 31, 2018 As Reported Balances Without Adoption of Topic 606 Effect of Change Higher/(Lower) Assets Capitalized contract costs, net $ 1,008,325 $ — $ 1,008,325 Subscriber acquisition costs, net — 1,328,449 (1,328,449 ) Liabilities and Stockholders' Deficit Accrued expenses and other current liabilities 124,344 114,133 10,211 Deferred revenue 142,985 95,690 47,295 Deferred revenue, net of current portion 229,978 298,989 (69,011 ) Accumulated deficit (1,726,540 ) (1,417,351 ) (309,189 ) Accumulated other comprehensive loss (27,280 ) (27,850 ) 570 Condensed Consolidated Statements of Operations and Comprehensive Loss (unaudited) Three months ended March 31, 2018 As Reported Balances Without Adoption of Topic 606 Effect of Change Higher/(Lower) Revenues: Recurring and other revenue $ 246,597 $ 227,294 $ 19,303 Service and other sales revenue — 8,035 (8,035 ) Activation fees — 2,631 (2,631 ) Costs and expenses: Operating expenses 83,760 87,988 (4,228 ) Depreciation and amortization 124,258 87,489 36,769 Loss before income taxes (85,150 ) (61,246 ) (23,904 ) Net loss (84,717 ) (60,813 ) (23,904 ) Other comprehensive loss, net of tax effects: Foreign currency translation adjustment (659 ) (1,229 ) 570 Total other comprehensive (loss) income (659 ) (1,229 ) 570 Comprehensive loss (85,376 ) (62,042 ) (23,334 ) Condensed Consolidated Statements of Cashflows (unaudited) March 31, 2018 As Reported Balances Without Adoption of Topic 606 Effect of Change Cash flows from operating activities: Net loss $ (84,717 ) $ (60,813 ) $ (23,904 ) Adjustments to reconcile net loss to net cash used in operating activities: Amortization of capitalized contract costs 95,363 — 95,363 Amortization of subscriber acquisition costs — 58,594 (58,594 ) Changes in operating assets and liabilities: Capitalized contract costs – deferred contract costs (84,986 ) — (84,986 ) Subscriber acquisition costs – deferred contract costs — (80,758 ) 80,758 Deferred revenue 33,793 42,430 (8,637 ) Net cash used in operating activities (59,582 ) (59,582 ) —

Long-Term Debt (Tables)

Long-Term Debt (Tables)	3 Months Ended
	Mar. 31, 2018
Debt Disclosure [Abstract]
Schedule of Other Expense and Loss on Extinguishment and Deferred Financing Costs	As a result of these analyses the company recorded the following amounts of other expense and loss on extinguishment and deferred financing costs during the three months ended March 31, 2017 (in thousands): Other expense and loss on extinguishment Deferred financing costs Issuance Original discount extinguished Original deferred financing costs extinguished New financing costs Total other expense and loss on extinguishment Original deferred financing rolled over New deferred financing costs Total deferred financing costs Three months ended March 31, 2017 February 2017 issuance $ — $ 3,259 $ 9,491 $ 12,750 $ 1,476 $ 6,076 $ 7,552
Schedule of Deferred Financing Activity	. The following table presents deferred financing activity for the three months ended March 31, 2018 and year ended December 31, 2017 (in thousands): Unamortized Deferred Financing Costs Balance December 31, 2017 Additions Refinances Early Extinguishment Amortized Balance March 31, 2018 Revolving Credit Facility $ 3,099 $ — $ — $ — $ (260 ) $ 2,839 2019 Notes 2,877 — — — (375 ) 2,502 2020 Notes 11,209 — — — (961 ) 10,248 2022 Private Placement Notes 752 — — — (38 ) 714 2022 Notes 16,067 — — — (817 ) 15,250 2023 Notes 4,762 — — — (210 ) 4,552 Total Deferred Financing Costs $ 38,766 $ — $ — $ — $ (2,661 ) $ 36,105 Unamortized Deferred Financing Costs Balance December 31, 2016 Additions Refinances Early Extinguishment Amortized Balance December 31, 2017 Revolving Credit Facility $ 4,420 $ 399 $ — $ — $ (1,720 ) $ 3,099 2019 Notes 11,693 — (1,949 ) (4,667 ) (2,200 ) 2,877 2020 Notes 15,053 — — — (3,844 ) 11,209 2022 Private Placement Notes 903 — — — (151 ) 752 2022 Notes 11,714 6,076 1,476 — (3,199 ) 16,067 2023 Notes — 4,569 473 — (280 ) 4,762 Total Deferred Financing Costs $ 43,783 $ 11,044 $ — $ (4,667 ) $ (11,394 ) $ 38,766
Summary of Debt	The Company’s debt at March 31, 2018 and December 31, 2017 consisted of the following (in thousands): March 31, 2018 Outstanding Principal Unamortized Premium (Discount) Unamortized Deferred Financing Costs (1) Net Carrying Amount Series D Revolving Credit Facility Due 2019 $ 4,000 $ — $ — $ 4,000 Series A, B Revolving Credit Facilities Due 2021 73,000 — — 73,000 6.375% Senior Secured Notes due 2019 269,465 — (2,502 ) 266,963 8.75% Senior Notes due 2020 930,000 4,122 (10,248 ) 923,874 8.875% Senior Secured Notes Due 2022 270,000 (2,453 ) (714 ) 266,833 7.875% Senior Secured Notes Due 2022 900,000 23,512 (15,250 ) 908,262 7.625% Senior Notes Due 2023 400,000 — (4,552 ) 395,448 Total Long-Term Debt $ 2,846,465 $ 25,181 $ (33,266 ) $ 2,838,380 December 31, 2017 Outstanding Principal Unamortized Premium (Discount) Unamortized Deferred Financing Costs (1) Net Carrying Amount Series D Revolving Credit Facility Due 2019 $ 3,000 $ — $ — $ 3,000 Series A, B Revolving Credit Facilities Due 2021 57,000 — — 57,000 6.375% Senior Secured Notes due 2019 269,465 — (2,877 ) 266,588 8.75% Senior Notes due 2020 930,000 4,465 (11,209 ) 923,256 8.875% Senior Secured Notes due 2022 270,000 (2,559 ) (752 ) 266,689 7.875% Senior Secured Notes due 2022 900,000 24,593 (16,067 ) 908,526 7.625% Senior Secured Notes Due 2023 400,000 — (4,762 ) 395,238 Total Long-Term Debt $ 2,829,465 $ 26,499 $ (35,667 ) $ 2,820,297 (1) Unamortized deferred financing costs related to the revolving credit facilities included in deferred financing costs, net on the condensed consolidated balance sheets at March 31, 2018 and December 31, 2017 was $2.8 million and $3.1 million , respectively.

Retail Installment Contract R28

Retail Installment Contract Receivables (Tables)	3 Months Ended
	Mar. 31, 2018
Receivables [Abstract]
Schedule of Installment Receivables	The changes in the Company’s allowance for accounts receivable were as follows for the periods ended (in thousands): Three Months Ended March 31, 2018 Twelve Months Ended December 31, 2017 Beginning balance $ 5,356 $ 4,138 Provision for doubtful accounts 3,968 22,465 Write-offs and adjustments (5,168 ) (21,247 ) Balance at end of period $ 4,156 $ 5,356 The following table summarizes the installment receivables (in thousands): March 31, 2018 December 31, 2017 RIC receivables, gross $ 140,038 $ 131,024 Deferred interest (32,441 ) (36,048 ) RIC receivables, net of deferred interest $ 107,597 $ 94,976 Classified on the condensed consolidated unaudited balance sheets as: Accounts and notes receivable, net $ 20,643 $ 16,469 Long-term notes receivables and other assets, net 86,954 78,507 RIC receivables, net $ 107,597 $ 94,976
Allowance for Credit Losses on Financing Receivables	Activity in the deferred interest for the RIC receivables was as follows (in thousands): Three months ended March 31, 2018 Twelve months ended December 31, 2017 Deferred interest, beginning of period $ 36,048 $ — Write-offs, net of recoveries (6,729 ) (6,055 ) Change in deferred interest on short-term and long-term RIC receivables 3,122 42,103 Deferred interest, end of period $ 32,441 $ 36,048

Balance Sheet Components (Table

Balance Sheet Components (Tables)	3 Months Ended
	Mar. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Company's Balance Sheet Components	The following table presents material balance sheet component balances (in thousands): March 31, 2018 December 31, 2017 Prepaid expenses and other current assets Prepaid expenses $ 9,884 $ 8,000 Deposits 780 1,596 Other 6,491 6,554 Total prepaid expenses and other current assets $ 17,155 $ 16,150 Capitalized contract costs Capitalized contract costs $ 1,956,259 $ — Accumulated amortization (947,934 ) — Capitalized contract costs, net $ 1,008,325 $ — Subscriber acquisition costs Subscriber acquisition costs $ — $ 1,837,388 Accumulated amortization — (528,830 ) Subscriber acquisition costs, net $ — $ 1,308,558 Long-term notes receivables and other assets RIC receivables, gross $ 119,395 $ 114,556 RIC deferred interest (32,441 ) (36,049 ) Security deposits 6,555 6,427 Investments 3,785 3,429 Other 344 360 Total long-term notes receivables and other assets, net $ 97,638 $ 88,723 Accrued payroll and commissions Accrued commissions $ 13,894 $ 27,485 Accrued payroll 23,455 30,267 Total accrued payroll and commissions $ 37,349 $ 57,752 Accrued expenses and other current liabilities Accrued interest payable $ 67,965 $ 28,737 Current portion of derivative liability 30,061 25,473 Service warranty accrual 8,538 — Accrued taxes 3,768 4,585 Spectrum license obligation — 3,861 Accrued payroll taxes and withholdings 3,489 3,185 Loss contingencies 2,406 2,156 Blackstone monitoring fee, a related party 1,900 933 Other 6,217 5,391 Total accrued expenses and other current liabilities $ 124,344 $ 74,321

Property and Equipment (Tables)

Property and Equipment (Tables)	3 Months Ended
	Mar. 31, 2018
Property, Plant and Equipment [Abstract]
Components of Property Plant and Equipment	Property, plant and equipment consisted of the following (in thousands): March 31, 2018 December 31, 2017 Estimated Useful Lives Vehicles $ 46,405 $ 42,008 3 - 5 years Computer equipment and software 48,183 46,651 3 - 5 years Leasehold improvements 21,231 20,783 2 - 15 years Office furniture, fixtures and equipment 18,413 17,202 7 years Build-to-suit lease building 8,268 8,268 10.5 years Construction in process 3,857 4,299 Property, plant and equipment, gross 146,357 139,211 Accumulated depreciation and amortization (66,713 ) (61,130 ) Property, plant and equipment, net $ 79,644 $ 78,081

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Indefinite-Lived Intangible Assets	The following table presents intangible asset balances (in thousands): March 31, 2018 December 31, 2017 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Estimated Definite-lived intangible assets: Customer contracts $ 968,230 $ (657,570 ) $ 310,660 $ 970,147 $ (637,780 ) $ 332,367 10 years 2GIG 2.0 technology 17,000 (13,779 ) 3,221 17,000 (13,274 ) 3,726 8 years Other technology 2,917 (1,354 ) 1,563 2,917 (1,250 ) 1,667 5 - 7 years Space Monkey technology 7,100 (4,488 ) 2,612 7,100 (4,066 ) 3,034 6 years Patents 10,994 (6,440 ) 4,554 10,616 (5,835 ) 4,781 5 years Total definite-lived intangible assets: $ 1,006,241 $ (683,631 ) $ 322,610 $ 1,007,780 $ (662,205 ) $ 345,575 Indefinite-lived intangible assets: Spectrum licenses $ — $ — $ — $ 31,253 $ — $ 31,253 IP addresses 564 — 564 564 — 564 Domain names 59 — 59 59 — 59 Total Indefinite-lived intangible assets 623 — 623 31,876 — 31,876 Total intangible assets, net $ 1,006,864 $ (683,631 ) $ 323,233 $ 1,039,656 $ (662,205 ) $ 377,451
Schedule of Definite-Lived Intangible Assets	The following table presents intangible asset balances (in thousands): March 31, 2018 December 31, 2017 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Estimated Definite-lived intangible assets: Customer contracts $ 968,230 $ (657,570 ) $ 310,660 $ 970,147 $ (637,780 ) $ 332,367 10 years 2GIG 2.0 technology 17,000 (13,779 ) 3,221 17,000 (13,274 ) 3,726 8 years Other technology 2,917 (1,354 ) 1,563 2,917 (1,250 ) 1,667 5 - 7 years Space Monkey technology 7,100 (4,488 ) 2,612 7,100 (4,066 ) 3,034 6 years Patents 10,994 (6,440 ) 4,554 10,616 (5,835 ) 4,781 5 years Total definite-lived intangible assets: $ 1,006,241 $ (683,631 ) $ 322,610 $ 1,007,780 $ (662,205 ) $ 345,575 Indefinite-lived intangible assets: Spectrum licenses $ — $ — $ — $ 31,253 $ — $ 31,253 IP addresses 564 — 564 564 — 564 Domain names 59 — 59 59 — 59 Total Indefinite-lived intangible assets 623 — 623 31,876 — 31,876 Total intangible assets, net $ 1,006,864 $ (683,631 ) $ 323,233 $ 1,039,656 $ (662,205 ) $ 377,451
Schedule of Estimated Future Amortization Expense of Intangible Assets Excluding Patents Currently in Process	Estimated future amortization expense of intangible assets, excluding approximately $0.2 million in patents currently in process, is as follows as of March 31, 2018 (in thousands): 2018 - Remaining Period $ 68,108 2019 78,932 2020 67,845 2021 58,691 2022 48,832 Thereafter 23 Total estimated amortization expense $ 322,431

Financial Instruments (Tables)

Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2018
Fair Value Disclosures [Abstract]
Fair Value, by Balance Sheet Grouping	The following tables set forth the Company’s cash and cash equivalents and Corporate Securities’ adjusted cost, gross unrealized gains, gross unrealized losses, gross realized gains, gross realized losses and fair value by significant investment category recorded as cash and cash equivalents or long-term notes receivables and other assets, net as of March 31, 2018 and December 31, 2017 (in thousands): March 31, 2018 Adjusted Cost Unrealized Gains Unrealized Losses Fair Value Cash and Cash Equivalents Long-Term Notes Receivables and Other Assets, net Cash $ 3,467 $ — $ — $ 3,467 $ 3,467 $ — Level 1: Money market funds 6 — — 6 6 — Corporate securities 2,703 334 — 3,037 — 3,037 Subtotal 2,709 334 — 3,043 6 3,037 Total $ 6,176 $ 334 $ — $ 6,510 $ 3,473 $ 3,037 December 31, 2017 Adjusted Cost Unrealized Gains Unrealized Losses Fair Value Cash and Cash Equivalents Long-Term Notes Receivables and Other Assets, net Cash $ 3,866 $ — $ — $ 3,866 $ 3,866 $ — Level 1: Money market funds 6 — — 6 6 — Corporate securities 4,018 — (1,315 ) 2,703 — 2,703 Subtotal 4,024 — (1,315 ) 2,709 6 2,703 Total $ 7,890 $ — $ (1,315 ) $ 6,575 $ 3,872 $ 2,703
Schedule of Long-term Debt Instruments	Components of long-term debt including the associated interest rates and related fair values are as follows (in thousands, except interest rates): March 31, 2018 December 31, 2017 Stated Interest Rate Issuance Face Value Estimated Fair Value Face Value Estimated Fair Value 2019 Notes $ 269,465 $ 270,220 $ 269,465 $ 273,507 6.375 % 2020 Notes 930,000 937,719 930,000 952,134 8.75 % 2022 Private Placement Notes 270,000 273,964 270,000 276,486 8.875 % 2022 Notes 900,000 934,380 900,000 966,420 7.875 % 2023 Notes 400,000 414,000 400,000 425,000 7.625 % Total $ 2,769,465 $ 2,830,283 $ 2,769,465 $ 2,893,547
Schedule of Derivative Liabilities at Fair Value	March 31, 2018 and December 31, 2017 (in thousands): March 31, 2018 December 31, 2017 Consumer Financing Program Contractual Obligations: Fair value $ 54,015 $ 46,496 Notional amount 189,225 163,032 Classified on the condensed consolidated unaudited balance sheets as: Accrued expenses and other current liabilities 30,061 25,473 Other long-term obligations 23,954 21,023 Total Consumer Financing Program Contractual Obligation $ 54,015 $ 46,496
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation	The following table summarizes the change in the fair value of the Level 3 outstanding derivative instrument for the three months ended March 31, 2018 and the twelve months ended December 31, 2017 (in thousands): Three months ended March 31, 2018 Twelve months ended December 31, 2017 Balance, beginning of period $ 46,496 $ — Additions 10,487 44,913 Settlements (6,505 ) (7,972 ) Losses included in earnings 3,537 9,555 Balance, end of period $ 54,015 $ 46,496

Stock-Based Compensation and 33

Stock-Based Compensation and Equity (Tables)	3 Months Ended
	Mar. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation Expense	Stock-based compensation expense in connection with all stock-based awards is presented as follows (in thousands): Three Months Ended March 31, 2018 2017 Operating expenses $ 18 $ 19 Selling expenses 45 54 General and administrative expenses 141 354 Total stock-based compensation $ 204 $ 427

Commitments and Contingencies (

Commitments and Contingencies (Tables)	3 Months Ended
	Mar. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Operating Leases of Lessee Disclosure	The Company's operating lease arrangements and related terms consisted of the following (in thousands): Rent Expense For the three months ended, March 31, 2018 March 31, 2017 Lease Term Arrangement Warehouse, office space and other $ 3,304 $ 2,935 11 - 15 years Wireless towers and spectrum 1,044 1,182 1 - 10 years Total Rent Expense $ 4,348 $ 4,117

Restructuring and Asset Impai35

Restructuring and Asset Impairment Charges (Tables)	3 Months Ended
	Mar. 31, 2018
Restructuring and Related Activities [Abstract]
Summary of Restructuring Activity	The following table presents accrued restructuring activity for the three months ended March 31, 2018 and the twelve months ended December 31, 2017 (in thousands): Contract termination costs Accrued restructuring balance as of December 31, 2016 $ 649 Cash payments (91 ) Accrued restructuring balance as of December 31, 2017 558 Cash payments (23 ) Accrued restructuring balance as of March 31, 2018 $ 535

Segment Reporting and Busines36

Segment Reporting and Business Concentrations (Tables)	3 Months Ended
	Mar. 31, 2018
Segment Reporting [Abstract]
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas	Revenues disaggregated by geographic region were as follows (in thousands): United States Canada Total Revenue from external customers Three months ended March 31, 2018 $ 228,542 $ 18,055 $ 246,597 Three months ended March 31, 2017 190,030 15,323 205,353

Guarantor and Non-Guarantor S37

Guarantor and Non-Guarantor Supplemental Financial Information (Tables)	3 Months Ended
	Mar. 31, 2018
Guarantor And Non Guarantor Supplemental Financial Information [Abstract]
Supplemental Condensed Consolidating Balance Sheet	Supplemental Condensed Consolidating Balance Sheet March 31, 2018 (in thousands) (unaudited) Parent APX Group, Inc. Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Assets Current assets $ — $ 3,679 $ 290,690 $ 64,345 $ (187,398 ) $ 171,316 Property, plant and equipment, net — — 78,995 649 — 79,644 Capitalized contract costs, net — — 941,337 66,988 — 1,008,325 Deferred financing costs, net — 2,839 — — — 2,839 Investment in subsidiaries — 1,877,486 — — (1,877,486 ) — Intercompany receivable — — 6,303 — (6,303 ) — Intangible assets, net — — 298,803 24,430 — 323,233 Goodwill — — 809,678 26,622 — 836,300 Long-term notes receivables and other assets — 106 87,029 10,609 (106 ) 97,638 Total Assets $ — $ 1,884,110 $ 2,512,835 $ 193,643 $ (2,071,293 ) $ 2,519,295 Liabilities and Stockholders’ (Deficit) Equity Current liabilities $ — $ 67,965 $ 370,099 $ 140,780 $ (187,398 ) $ 391,446 Intercompany payable — — — 6,303 (6,303 ) — Notes payable and revolving credit facility, net of current portion — 2,838,380 — — — 2,838,380 Capital lease obligations, net of current portion — — 10,873 192 — 11,065 Deferred revenue, net of current portion — — 217,757 12,221 — 229,978 Other long-term obligations — — 61,842 — — 61,842 Accumulated losses of investee, net 1,022,235 (1,022,235 ) — Deferred income tax liability — — 106 8,819 (106 ) 8,819 Total (deficit) equity (1,022,235 ) (1,022,235 ) 1,852,158 25,328 (855,251 ) (1,022,235 ) Total liabilities and stockholders’ (deficit) equity $ — $ 1,884,110 $ 2,512,835 $ 193,643 $ (2,071,293 ) $ 2,519,295 Supplemental Condensed Consolidating Balance Sheet December 31, 2017 (in thousands) Parent APX Group, Inc. Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Assets Current assets $ — $ 4,150 $ 284,293 $ 49,935 $ (162,413 ) $ 175,965 Property, plant and equipment, net — — 77,345 736 — 78,081 Subscriber acquisition costs, net — — 1,214,678 93,880 — 1,308,558 Deferred financing costs, net — 3,099 — — — 3,099 Investment in subsidiaries — 2,188,221 — — (2,188,221 ) — Intercompany receivable — — 6,303 — (6,303 ) — Intangible assets, net — — 350,710 26,741 — 377,451 Goodwill — — 809,678 27,292 — 836,970 Long-term notes receivables and other assets — 106 78,173 10,550 (106 ) 88,723 Total Assets $ — $ 2,195,576 $ 2,821,180 $ 209,134 $ (2,357,043 ) $ 2,868,847 Liabilities and Stockholders’ (Deficit) Equity Current liabilities $ — $ 28,805 $ 343,398 $ 128,581 $ (162,413 ) $ 338,371 Intercompany payable — — — 6,303 (6,303 ) — Notes payable and revolving credit facility, net of current portion — 2,820,297 — — — 2,820,297 Capital lease obligations, net of current portion — — 10,791 298 — 11,089 Deferred revenue, net of current portion — — 248,643 15,912 — 264,555 Accumulated Losses of Investee, net 653,526 (653,526 ) — Other long-term obligations — — 79,020 — — 79,020 Deferred income tax liability — — 106 9,041 (106 ) 9,041 Total (deficit) equity (653,526 ) (653,526 ) 2,139,222 48,999 (1,534,695 ) (653,526 ) Total liabilities and stockholders’ (deficit) equity $ — $ 2,195,576 $ 2,821,180 $ 209,134 $ (2,357,043 ) $ 2,868,847
Supplemental Condensed Consolidating Statements of Operations and Comprehensive (Loss) Income	Supplemental Condensed Consolidating Statements of Operations and Comprehensive Loss For the Three Months Ended March 31, 2018 (in thousands) (unaudited) Parent APX Group, Inc. Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Revenues $ — $ — $ 233,788 $ 13,465 $ (656 ) $ 246,597 Costs and expenses — — 305,221 13,663 (656 ) 318,228 Loss from operations — — (71,433 ) (198 ) — (71,631 ) Loss from subsidiaries (84,717 ) (26,320 ) — — 111,037 — Other expense (income), net — 58,397 (46,970 ) 2,092 — 13,519 Loss before income tax expenses (84,717 ) (84,717 ) (24,463 ) (2,290 ) 111,037 (85,150 ) Income tax expense (benefit) — — 172 (605 ) — (433 ) Net loss (84,717 ) (84,717 ) (24,635 ) (1,685 ) 111,037 (84,717 ) Other comprehensive loss, net of tax effects: Net loss (84,717 ) (84,717 ) (24,635 ) (1,685 ) 111,037 (84,717 ) Foreign currency translation adjustment (659 ) (659 ) — (659 ) 1,318 (659 ) Total other comprehensive loss (659 ) (659 ) — (659 ) 1,318 (659 ) Comprehensive loss $ (85,376 ) $ (85,376 ) $ (24,635 ) $ (2,344 ) $ 112,355 $ (85,376 ) Supplemental Condensed Consolidating Statements of Operations and Comprehensive Loss For the Three Months Ended March 31, 2017 (in thousands) (unaudited) Parent APX Group, Inc. Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Revenues $ — $ — $ 193,968 $ 12,060 $ (675 ) $ 205,353 Costs and expenses — — 212,741 9,814 (675 ) 221,880 (Loss) income from operations — — (18,773 ) 2,246 — (16,527 ) Loss from subsidiaries (82,636 ) (17,209 ) — — 99,845 — Other expense (income), net — 65,427 938 (675 ) — 65,690 (Loss) income before income tax expenses (82,636 ) (82,636 ) (19,711 ) 2,921 99,845 (82,217 ) Income tax (benefit) expense — — (362 ) 781 — 419 Net (loss) income (82,636 ) (82,636 ) (19,349 ) 2,140 99,845 (82,636 ) Other comprehensive loss, net of tax effects: — Net (loss) income (82,636 ) (82,636 ) (19,349 ) 2,140 99,845 (82,636 ) Foreign currency translation adjustment — 412 — 411 (411 ) 412 Unrealized gain on marketable securities — 143 143 — (143 ) 143 Total other comprehensive income — 555 143 411 (554 ) 555 Comprehensive (loss) income $ (82,636 ) $ (82,081 ) $ (19,206 ) $ 2,551 $ 99,291 $ (82,081 )
Supplemental Condensed Consolidating Statements of Cash Flows	Supplemental Condensed Consolidating Statements of Cash Flows For the Three Months Ended March 31, 2018 (in thousands) (unaudited) Parent APX Group, Inc. Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Cash flows from operating activities: Net cash used in operating activities $ — $ — $ (59,159 ) $ (423 ) $ — $ (59,582 ) Cash flows from investing activities: Subscriber acquisition costs – company owned equipment — — — — — — Capital expenditures — — (6,407 ) — — (6,407 ) Proceeds from sale of intangibles — — 53,693 — — 53,693 Proceeds from sale of capital assets — — 149 — — 149 Investment in subsidiary 966 (16,450 ) — — 15,484 — Acquisition of intangible assets — — (849 ) — — (849 ) Net cash provided by (used in) investing activities 966 (16,450 ) 46,586 — 15,484 46,586 Cash flows from financing activities: Borrowings from revolving credit facility — 57,000 — — — 57,000 Repayments on revolving credit facility — (40,000 ) — — — (40,000 ) Proceeds from capital contribution — — 17,416 — (17,416 ) — Intercompany receivable — — — — — — Intercompany payable — — — — — — Repayments of capital lease obligations — — (3,305 ) (113 ) — (3,418 ) Return of capital (966 ) (966 ) (966 ) — 1,932 (966 ) Net cash (used in) provided by financing activities (966 ) 16,034 13,145 (113 ) (15,484 ) 12,616 Effect of exchange rate changes on cash — — — (19 ) — (19 ) Net (decrease) increase in cash and cash equivalents — (416 ) 572 (555 ) — (399 ) Cash and cash equivalents: Beginning of period — 3,661 (572 ) 783 — 3,872 End of period $ — $ 3,245 $ — $ 228 $ — $ 3,473 Supplemental Condensed Consolidating Statements of Cash Flows For the Three Months Ended March 31, 2017 (in thousands) (unaudited) Parent APX Group, Inc. Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Cash flows from operating activities: Net cash (used in) provided by operating activities $ — $ — $ (9,747 ) $ 3,594 $ — $ (6,153 ) Cash flows from investing activities: Capital expenditures — — (7,526 ) — — (7,526 ) Investment in subsidiary — 5,202 — — (5,202 ) — Acquisition of intangible assets — — (623 ) — — (623 ) Proceeds from sale of capital assets — — 239 — — 239 Acquisition of other assets — — (126 ) — — (126 ) Net cash provided by (used in) investing activities — 5,202 (8,036 ) — (5,202 ) (8,036 ) Cash flows from financing activities: Proceeds from notes payable — 324,750 — — — 324,750 Repayment on notes payable — (300,000 ) — — — (300,000 ) Intercompany receivable — — 3,189 — (3,189 ) — Intercompany payable — — (5,202 ) (3,189 ) 8,391 — Repayments of capital lease obligations — — (2,275 ) (86 ) — (2,361 ) Financing costs — (8,951 ) — — — (8,951 ) Deferred financing costs — (5,537 ) — — — (5,537 ) Net cash provided by (used in) financing activities — 10,262 (4,288 ) (3,275 ) 5,202 7,901 Effect of exchange rate changes on cash — — — (7 ) — (7 ) Net increase (decrease) in cash and cash equivalents — 15,464 (22,071 ) 312 — (6,295 ) Cash and cash equivalents: Beginning of period — 24,680 18,186 654 — 43,520 End of period $ — $ 40,144 $ (3,885 ) $ 966 $ — $ 37,225

Basis of Presentation and Sig38

Basis of Presentation and Significant Accounting Policies - Additional Information (Detail)	3 Months Ended		12 Months Ended
	Mar. 31, 2018USD ($)payment	Mar. 31, 2017USD ($)	Dec. 31, 2017USD ($)	Jan. 01, 2018USD ($)	Dec. 31, 2016USD ($)
Basis Of Presentation And Significant Accounting Policies [Line Items]
Long-term debt	$ 2,838,380,000		$ 2,820,297,000
Accounts and notes receivable, net	20,800,000		24,300,000
Allowance for doubtful accounts	4,156,000		5,356,000		$ 4,138,000
Provision for doubtful accounts	$ 3,968,000	$ 4,682,000	22,465,000
Capitalized contract costs, expected period of benefit	5 years
Equity method investments	$ 3,800,000		3,400,000
Available for sale securities, fair value	6,510,000		6,575,000
Deferred financing costs	33,266,000		35,667,000
Amortization expenses included in interest expense	1,343,000	1,991,000
Sales commission included in accrued expenses and other liabilities	4,000,000		3,300,000
Other long-term obligations	22,300,000		18,500,000
Advertising expenses incurred	$ 13,700,000	10,800,000
Uncertain income tax position	50.00%
Intercompany translation gains (losses)	$ (2,100,000)	700,000
Issued and unused letters of credit	11,500,000		9,500,000
Accumulated deficit	1,726,540,000		1,358,571,000	$ 1,641,143,000
Equity securities, unrealized gain	$ 300,000
2GIG Sale
Basis Of Presentation And Significant Accounting Policies [Line Items]
Percentage of installed panels	26.00%
Vivint Sky Control Panels
Basis Of Presentation And Significant Accounting Policies [Line Items]
Percentage of installed panels	72.00%
Interest Expense
Basis Of Presentation And Significant Accounting Policies [Line Items]
Amortization expenses included in interest expense	$ 2,700,000	$ 2,900,000
Minimum
Basis Of Presentation And Significant Accounting Policies [Line Items]
Estimated useful life of intangible assets	5 years
Maximum
Basis Of Presentation And Significant Accounting Policies [Line Items]
Estimated useful life of intangible assets	10 years
Notes Payable
Basis Of Presentation And Significant Accounting Policies [Line Items]
Deferred financing costs	$ 33,300,000		35,700,000
Deferred financing cost, accumulated amortization	$ 47,600,000		45,200,000
Vivint Flex Pay
Basis Of Presentation And Significant Accounting Policies [Line Items]
Number of payment options | payment	3
Installment loans available to qualified customers, maximum amount provided by third party	$ 4,000
Vivint Flex Pay | Minimum
Basis Of Presentation And Significant Accounting Policies [Line Items]
Installment loans available to qualified customers, term	42 months
Vivint Flex Pay | Maximum
Basis Of Presentation And Significant Accounting Policies [Line Items]
Installment loans available to qualified customers, term	60 months
Subscriber Contracts
Basis Of Presentation And Significant Accounting Policies [Line Items]
Amortization duration of costs period	15 years
Amortization percentage on subscriber contract costs over estimated useful life	240.00%
Subscriber Contracts | Minimum
Basis Of Presentation And Significant Accounting Policies [Line Items]
Contract with customer, term	3 years
Subscriber Contracts | Maximum
Basis Of Presentation And Significant Accounting Policies [Line Items]
Contract with customer, term	5 years
Revolving Credit Facility
Basis Of Presentation And Significant Accounting Policies [Line Items]
Long-term debt	$ 77,000,000		60,000,000
Issued and unused letters of credit	215,100,000
Line of Credit | Revolving Credit Facility
Basis Of Presentation And Significant Accounting Policies [Line Items]
Deferred financing costs	2,800,000		3,100,000
Deferred financing cost, accumulated amortization	8,800,000		8,600,000
Accounting Standards Update 2016-01
Basis Of Presentation And Significant Accounting Policies [Line Items]
Accumulated deficit				$ 700,000
Fair Value, Inputs, Level 3
Basis Of Presentation And Significant Accounting Policies [Line Items]
Equity method investments	$ 700,000		$ 700,000

Basis of Presentation and Sig39

Basis of Presentation and Significant Accounting Policies - Accounts Receivable (Detail) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Accounting Policies [Abstract]
Accounts receivable classified as held for sale	$ 0		$ 0
Allowance for Doubtful Accounts Receivable [Roll Forward]
Beginning balance	5,356,000	$ 4,138,000	4,138,000
Provision for doubtful accounts	3,968,000	$ 4,682,000	22,465,000
Write-offs and adjustments	(5,168,000)		(21,247,000)
Balance at end of period	$ 4,156,000		$ 5,356,000

Basis of Presentation and Sig40

Basis of Presentation and Significant Accounting Policies - Depreciation and Amortization (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Property, Plant and Equipment [Line Items]
Total depreciation and amortization	$ 124,258	$ 76,869
Depreciation of property, plant and equipment
Property, Plant and Equipment [Line Items]
Total depreciation and amortization	6,175	4,640
Amortization of capitalized contract costs
Property, Plant and Equipment [Line Items]
Total depreciation and amortization	95,363	0
Amortization of subscriber acquisition costs
Property, Plant and Equipment [Line Items]
Total depreciation and amortization	0	46,878
Amortization of definite-lived intangibles
Property, Plant and Equipment [Line Items]
Total depreciation and amortization	$ 22,720	$ 25,351

Revenue and Capitalized Contr41

Revenue and Capitalized Contract Costs - Impact of Adopting ASC 606 (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Jan. 01, 2018	Dec. 31, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue recognized	$ 59,800
Capitalized contract costs, net	1,008,325		$ 1,020,408	$ 0
Subscriber acquisition costs, net	0		0	1,308,558
Long-term notes receivables and other assets, net	97,638		91,436	88,723
Accrued expenses and other current liabilities	124,344		84,650	74,321
Deferred revenue	142,985		128,205	88,337
Deferred revenue, net of current portion	229,978		211,493	264,555
Accumulated deficit	(1,726,540)		(1,641,143)	(1,358,571)
Accumulated other comprehensive loss	(27,280)			(27,301)
Recurring and other revenue	246,597	$ 196,858
Service and other sales revenue	0	5,391
Activation fees	0	3,104
Operating expenses	83,760	71,352
Depreciation and amortization	124,258	76,869
Loss before income taxes	(85,150)	(82,217)
Net loss	(84,717)	(82,636)
Foreign currency translation adjustment	(659)	412
Total other comprehensive (loss) income	(659)	555
Comprehensive loss	(85,376)	(82,081)
Amortization of capitalized contract costs	95,363	0
Amortization of subscriber acquisition costs	0	46,878
Capitalized contract costs – deferred contract costs	(84,986)	0
Subscriber acquisition costs – deferred contract costs	0	(58,722)
Accrued expenses and other current liabilities	30,252	37,546
Deferred revenue	33,793	18,000
Net cash provided by (used in) operating activities	$ (59,582)	$ (6,153)
Capitalized contract cost, amortization period	5 years
Calculated under Revenue Guidance in Effect before Topic 606
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Capitalized contract costs, net	$ 0			0
Subscriber acquisition costs, net	1,328,449			1,308,558
Long-term notes receivables and other assets, net				88,723
Accrued expenses and other current liabilities	114,133			74,321
Deferred revenue	95,690			88,337
Deferred revenue, net of current portion	298,989			264,555
Accumulated deficit	(1,417,351)			$ (1,358,571)
Accumulated other comprehensive loss	(27,850)
Recurring and other revenue	227,294
Service and other sales revenue	8,035
Activation fees	2,631
Operating expenses	87,988
Depreciation and amortization	87,489
Loss before income taxes	(61,246)
Net loss	(60,813)
Foreign currency translation adjustment	(1,229)
Total other comprehensive (loss) income	(1,229)
Comprehensive loss	(62,042)
Amortization of capitalized contract costs	0
Amortization of subscriber acquisition costs	58,594
Capitalized contract costs – deferred contract costs	0
Subscriber acquisition costs – deferred contract costs	(80,758)
Deferred revenue	42,430
Net cash provided by (used in) operating activities	(59,582)
Difference between Revenue Guidance in Effect before and after Topic 606 | Accounting Standards Update 2014-09
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Capitalized contract costs, net	1,008,325		1,020,408
Subscriber acquisition costs, net	(1,328,449)		(1,308,558)
Long-term notes receivables and other assets, net			2,713
Accrued expenses and other current liabilities	10,211		10,329
Deferred revenue	47,295		39,868
Deferred revenue, net of current portion	(69,011)		(53,062)
Accumulated deficit	(309,189)		$ (282,572)
Accumulated other comprehensive loss	570
Recurring and other revenue	19,303
Service and other sales revenue	(8,035)
Activation fees	(2,631)
Operating expenses	(4,228)
Depreciation and amortization	36,769
Loss before income taxes	(23,904)
Net loss	(23,904)
Foreign currency translation adjustment	570
Total other comprehensive (loss) income	570
Comprehensive loss	(23,334)
Amortization of capitalized contract costs	95,363
Amortization of subscriber acquisition costs	(58,594)
Capitalized contract costs – deferred contract costs	(84,986)
Subscriber acquisition costs – deferred contract costs	80,758
Deferred revenue	(8,637)
Net cash provided by (used in) operating activities	$ 0
Subscriber Contracts
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Amortization duration of costs period	15 years
Amortization percentage on subscriber contract costs over estimated useful life	240.00%
Minimum | Subscriber Contracts
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract with customer, term	3 years
Maximum | Subscriber Contracts
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract with customer, term	5 years

Revenue and Capitalized Contr42

Revenue and Capitalized Contract Costs - Remaining Performance Obligations (Details) $ in Billions	3 Months Ended
	Mar. 31, 2018USD ($)
Revenue from Contract with Customer [Abstract]
Performance obligations expected to be satisfied	$ 2
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation, percentage	3 years
Performance obligations expected to be satisfied, expected timing	68.00%

Long-Term Debt - Additional Inf

Long-Term Debt - Additional Information (Detail)

Dec. 13, 2013USD ($)

May 31, 2013USD ($)

Nov. 16, 2012USD ($)offering

Aug. 31, 2017USD ($)

Mar. 31, 2018USD ($)

Dec. 31, 2014USD ($)

Dec. 31, 2017USD ($)

Nov. 30, 2017USD ($)

Aug. 10, 2017USD ($)

Feb. 28, 2017USD ($)

Aug. 31, 2016USD ($)

May 31, 2016USD ($)

Oct. 31, 2015USD ($)

Mar. 06, 2015USD ($)

Debt Instrument [Line Items]

Issued and unused letters of credit

$ 11,500,000

$ 9,500,000

Outstanding borrowings

$ 2,838,380,000

2,820,297,000

Revolving Credit Facility

Debt Instrument [Line Items]

Credit facility, aggregate principal amount

$ 200,000,000

$ 324,300,000

$ 289,400,000

Debt maturity term

5 years

Aggregate principal amount of the credit agreement, description

The aggregate commitments previously available to APX thereunder from $200.0 million to $289.4 million

Step down

0.25%

Commitment fee

0.125%

Issued and unused letters of credit

$ 215,100,000

Outstanding borrowings

$ 77,000,000

60,000,000

Revolving Credit Facility | Federal Funds Rate

Debt Instrument [Line Items]

Variable interest rate percentage

0.50%

Revolving Credit Facility | LIBOR

Debt Instrument [Line Items]

Variable interest rate percentage

1.00%

Variable interest rate description

One month, plus 1.00%

6.375% Senior Secured Notes due 2019

Debt Instrument [Line Items]

Debt instrument interest rate

6.375%

Debt instrument maturity date

Dec. 1, 2019

8.75% Senior Notes due 2020

Debt Instrument [Line Items]

Debt instrument interest rate

8.75%

Debt instrument maturity date

Dec. 1, 2020

Series A Revolving Commitments | Revolving Credit Facility

Debt Instrument [Line Items]

Credit facility, aggregate principal amount

$ 267,000,000

Series A Revolving Commitments | Revolving Credit Facility | LIBOR

Debt Instrument [Line Items]

Variable interest rate percentage

3.00%

Series A Revolving Commitments | Revolving Credit Facility | Base Rate-based Borrowings

Debt Instrument [Line Items]

Variable interest rate percentage

2.00%

Series B Revolving Commitments | Revolving Credit Facility

Debt Instrument [Line Items]

Credit facility, aggregate principal amount

$ 21,200,000

Credit facility, due date

Mar. 31, 2021

Series B Revolving Commitments | Revolving Credit Facility | LIBOR

Debt Instrument [Line Items]

Variable interest rate percentage

4.00%

Series B Revolving Commitments | Revolving Credit Facility | Base Rate-based Borrowings

Debt Instrument [Line Items]

Variable interest rate percentage

3.00%

Series C Revolving Commitments | Revolving Credit Facility

Debt Instrument [Line Items]

Credit facility, aggregate principal amount

$ 20,800,000

Series C Revolving Commitments | Revolving Credit Facility | LIBOR

Debt Instrument [Line Items]

Variable interest rate percentage

3.00%

Series C Revolving Commitments | Revolving Credit Facility | Base Rate-based Borrowings

Debt Instrument [Line Items]

Variable interest rate percentage

2.00%

Series D Revolving Commitments | Revolving Credit Facility

Debt Instrument [Line Items]

Credit facility, aggregate principal amount

$ 15,400,000

Senior Notes

Debt Instrument [Line Items]

Face amount

$ 1,300,000,000

Senior Notes | 6.375% Senior Secured Notes due 2019

Debt Instrument [Line Items]

Face amount

$ 925,000,000

Debt instrument interest rate

6.375%

6.375%

Repurchase amount

$ 300,000,000

Repayments of long-term debt

$ 150,000,000

Outstanding borrowings

$ 266,963,000

266,588,000

Senior Notes | 7.625% Senior Notes Due 2023

Debt Instrument [Line Items]

Face amount

$ 400,000,000

Debt instrument interest rate

7.625%

7.625%

Outstanding borrowings

$ 395,448,000

395,238,000

Senior Notes | 8.75% Senior Notes due 2020

Debt Instrument [Line Items]

Face amount

$ 250,000,000

$ 200,000,000

$ 380,000,000

$ 100,000,000

Debt instrument interest rate

8.75%

8.75%

Number of offerings | offering

2

Debt instrument, redemption price, percentage

101.50%

101.75%

102.00%

Outstanding borrowings

$ 923,874,000

923,256,000

Senior Notes | 2019 Senior Notes and 2022 Private Placement Notes

Debt Instrument [Line Items]

Repurchase amount

$ 235,000,000

Senior Notes | 8.875% Senior Secured Notes Due 2022

Debt Instrument [Line Items]

Face amount

$ 300,000,000

Debt instrument interest rate

8.875%

8.875%

Principal amount outstanding threshold for accelerated maturity (on September 1, 2020)

$ 190,000,000

Outstanding borrowings

$ 266,833,000

266,689,000

Senior Notes | 7.875% Senior Secured Notes Due 2022

Debt Instrument [Line Items]

Face amount

$ 500,000,000

Debt instrument interest rate

7.875%

7.875%

Outstanding borrowings

$ 908,262,000

$ 908,526,000

Senior Notes | August 2022 Notes

Debt Instrument [Line Items]

Issuance price, percentage

108.25%

104.00%

Letter of Credit

Debt Instrument [Line Items]

Outstanding borrowings

$ 11,500,000

August 2016 Issuance of 7.875% Notes Due 2022 | Senior Notes | August 2022 Notes

Debt Instrument [Line Items]

Face amount

$ 100,000,000

February 2017 Issuance of 7.875% Notes Due 2022 | Senior Notes | August 2022 Notes

Debt Instrument [Line Items]

Face amount

$ 300,000,000

Long-Term Debt - Other Expense

Long-Term Debt - Other Expense and Loss on Extinguishment and Deferred Financing Costs (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Debt Instrument [Line Items]
Original deferred financing costs extinguished	$ 0		$ 4,667
New financing costs	0	$ (5,537)
Senior Notes | 6.375% Senior Secured Notes due 2019
Debt Instrument [Line Items]
Original deferred financing costs extinguished	0		4,667
Senior Notes | 7.875% Senior Secured Notes Due 2022
Debt Instrument [Line Items]
Original deferred financing costs extinguished	0		$ 0
February 2017 Issuance of 7.875% Notes Due 2022 | Senior Notes | 6.375% Senior Secured Notes due 2019
Debt Instrument [Line Items]
Original discount extinguished	0
Original deferred financing costs extinguished	3,259
New financing costs	9,491
Total other expense and loss on extinguishment	12,750
Original deferred financing rolled over	1,476
New deferred financing costs	6,076
Total deferred financing costs	$ 7,552

Long-Term Debt - Deferred Finan

Long-Term Debt - Deferred Financing Activity (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Deferred Financing Activity [Roll Forward]
Beginning balance	$ 38,766	$ 43,783
Additions	0	11,044
Refinances	0	0
Early Extinguishment	0	(4,667)
Amortized	(2,661)	(11,394)
Ending balance	36,105	38,766
Senior Notes | 6.375% Senior Secured Notes due 2019
Deferred Financing Activity [Roll Forward]
Beginning balance	2,877	11,693
Additions	0	0
Refinances	0	(1,949)
Early Extinguishment	0	(4,667)
Amortized	(375)	(2,200)
Ending balance	2,502	2,877
Senior Notes | 8.75% Senior Notes due 2020
Deferred Financing Activity [Roll Forward]
Beginning balance	11,209	15,053
Additions	0	0
Refinances	0	0
Early Extinguishment	0	0
Amortized	(961)	(3,844)
Ending balance	10,248	11,209
Senior Notes | 8.875% Senior Secured Notes Due 2022
Deferred Financing Activity [Roll Forward]
Beginning balance	752	903
Additions	0	0
Refinances	0	0
Early Extinguishment	0	0
Amortized	(38)	(151)
Ending balance	714	752
Senior Notes | 7.875% Senior Secured Notes Due 2022
Deferred Financing Activity [Roll Forward]
Beginning balance	16,067	11,714
Additions	0	6,076
Refinances	0	1,476
Early Extinguishment	0	0
Amortized	(817)	(3,199)
Ending balance	15,250	16,067
Senior Notes | 7.625% Senior Notes Due 2023
Deferred Financing Activity [Roll Forward]
Beginning balance	4,762	0
Additions	0	4,569
Refinances	0	473
Early Extinguishment	0	0
Amortized	(210)	(280)
Ending balance	4,552	4,762
Revolving Credit Facility | Line of Credit
Deferred Financing Activity [Roll Forward]
Beginning balance	3,099	4,420
Additions	0	399
Refinances	0	0
Early Extinguishment	0	0
Amortized	(260)	(1,720)
Ending balance	$ 2,839	$ 3,099

Long-Term Debt - Summary of Deb

Long-Term Debt - Summary of Debt (Detail) - USD ($)	Mar. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Outstanding Principal	$ 2,846,465,000	$ 2,829,465,000
Unamortized Premium (Discount)	25,181,000	26,499,000
Unamortized Deferred Financing Costs	(33,266,000)	(35,667,000)
Net Carrying Amount	2,838,380,000	2,820,297,000
Deferred financing costs, net	2,839,000	3,099,000
Senior Notes | 6.375% Senior Secured Notes due 2019
Debt Instrument [Line Items]
Outstanding Principal	269,465,000	269,465,000
Unamortized Premium (Discount)	0	0
Unamortized Deferred Financing Costs	(2,502,000)	(2,877,000)
Net Carrying Amount	266,963,000	266,588,000
Senior Notes | 8.75% Senior Notes due 2020
Debt Instrument [Line Items]
Outstanding Principal	930,000,000	930,000,000
Unamortized Premium (Discount)	4,122,000	4,465,000
Unamortized Deferred Financing Costs	(10,248,000)	(11,209,000)
Net Carrying Amount	923,874,000	923,256,000
Senior Notes | 8.875% Senior Secured Notes Due 2022
Debt Instrument [Line Items]
Outstanding Principal	270,000,000	270,000,000
Unamortized Premium (Discount)	(2,453,000)	(2,559,000)
Unamortized Deferred Financing Costs	(714,000)	(752,000)
Net Carrying Amount	266,833,000	266,689,000
Senior Notes | 7.875% Senior Secured Notes Due 2022
Debt Instrument [Line Items]
Outstanding Principal	900,000,000	900,000,000
Unamortized Premium (Discount)	23,512,000	24,593,000
Unamortized Deferred Financing Costs	(15,250,000)	(16,067,000)
Net Carrying Amount	908,262,000	908,526,000
Senior Notes | 7.625% Senior Notes Due 2023
Debt Instrument [Line Items]
Outstanding Principal	400,000,000	400,000,000
Unamortized Premium (Discount)	0	0
Unamortized Deferred Financing Costs	(4,552,000)	(4,762,000)
Net Carrying Amount	395,448,000	395,238,000
Revolving Credit Facility
Debt Instrument [Line Items]
Net Carrying Amount	77,000,000	60,000,000
Deferred financing costs, net	2,800,000	3,100,000
Revolving Credit Facility | Series D Revolving Credit Facility Due 2019
Debt Instrument [Line Items]
Outstanding Principal	4,000,000	3,000,000
Unamortized Premium (Discount)	0	0
Unamortized Deferred Financing Costs	0	0
Net Carrying Amount	4,000,000	3,000,000
Revolving Credit Facility | Series A, B Revolving Credit Facilities Due 2021
Debt Instrument [Line Items]
Outstanding Principal	73,000,000	57,000,000
Unamortized Premium (Discount)	0	0
Unamortized Deferred Financing Costs	0	0
Net Carrying Amount	$ 73,000,000	$ 57,000,000

Retail Installment Contract R47

Retail Installment Contract Receivables - Installment Receivables (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Deferred interest	$ (32,441)	$ (36,049)
Retail Installment Contracts
Accounts, Notes, Loans and Financing Receivable [Line Items]
RIC receivables, gross	140,038	131,024
Deferred interest	(32,441)	(36,048)
RIC receivables, net of deferred interest	107,597	94,976
Classified on the condensed consolidated unaudited balance sheets as:
Accounts and notes receivable, net	20,643	16,469
Long-term notes receivables and other assets, net	86,954	78,507
RIC receivables, net	107,597	$ 94,976
Interest income	$ (3,300)
Minimum | Vivint Flex Pay
Accounts, Notes, Loans and Financing Receivable [Line Items]
Installment loans available to qualified customers, term	42 months
Maximum | Vivint Flex Pay
Accounts, Notes, Loans and Financing Receivable [Line Items]
Installment loans available to qualified customers, term	60 months

Retail Installment Contract R48

Retail Installment Contract Receivables - Allowance for Credit Losses (Details) - Retail Installment Contracts - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Deferred interest, beginning of period	$ 36,048	$ 0
Write-offs, net of recoveries	(6,729)	(6,055)
Change in deferred interest on short-term and long-term RIC receivables	3,122	42,103
Deferred interest, end of period	$ 32,441	$ 36,048

Balance Sheet Components (Detai

Balance Sheet Components (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Prepaid expenses and other current assets
Prepaid expenses	$ 9,884		$ 8,000
Deposits	780		1,596
Other	6,491		6,554
Total prepaid expenses and other current assets	17,155		16,150
Capitalized contract costs
Capitalized contract costs	1,956,259		0
Accumulated amortization	(947,934)		0
Capitalized contract costs, net	1,008,325	$ 1,020,408	0
Subscriber acquisition costs
Subscriber acquisition costs	0		1,837,388
Accumulated amortization	0		(528,830)
Subscriber acquisition costs, net	0	0	1,308,558
Long-term notes receivables and other assets
RIC receivables, gross	119,395		114,556
RIC deferred interest	(32,441)		(36,049)
Security deposits	6,555		6,427
Investments	3,785		3,429
Other	344		360
Total long-term notes receivables and other assets, net	97,638	91,436	88,723
Accrued payroll and commissions
Accrued commissions	13,894		27,485
Accrued payroll	23,455		30,267
Total accrued payroll and commissions	37,349		57,752
Accrued expenses and other current liabilities
Accrued interest payable	67,965		28,737
Current portion of derivative liability	30,061		25,473
Service warranty accrual	8,538		0
Accrued taxes	3,768		4,585
Spectrum license obligation	0		3,861
Accrued payroll taxes and withholdings	3,489		3,185
Loss contingencies	2,406		2,156
Blackstone monitoring fee, a related party	1,900		933
Other	6,217		5,391
Total accrued expenses and other current liabilities	$ 124,344	$ 84,650	$ 74,321

Property Plant and Equipment -

Property Plant and Equipment - Components of Property Plant and Equipment (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	$ 146,357	$ 139,211
Accumulated depreciation and amortization	(66,713)	(61,130)
Property, plant and equipment, net	79,644	78,081
Vehicles
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	$ 46,405	42,008
Vehicles | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives	3 years
Vehicles | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives	5 years
Computer equipment and software
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	$ 48,183	46,651
Computer equipment and software | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives	3 years
Computer equipment and software | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives	5 years
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	$ 21,231	20,783
Leasehold improvements | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives	2 years
Leasehold improvements | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives	15 years
Office furniture, fixtures and equipment
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	$ 18,413	17,202
Estimated Useful Lives	7 years
Buildings
Property, Plant and Equipment [Line Items]
Estimated Useful Lives	39 years
Build-to-suit lease building
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	$ 8,268	8,268
Accumulated depreciation and amortization	$ (600)	(300)
Estimated Useful Lives	10 years 6 months
Construction in process
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	$ 3,857	$ 4,299

Property Plant and Equipment 51

Property Plant and Equipment - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	$ 146,357		$ 139,211
Accumulated amortization	66,713		61,130
Depreciation and amortization expense	6,200	$ 4,600
Assets Under Capital Lease Obligations
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	29,000		26,200
Accumulated amortization	$ 18,200		$ 16,600

Goodwill and Intangible Asset52

Goodwill and Intangible Assets - Additional Information (Detail) $ in Thousands	Jan. 10, 2018USD ($)	Mar. 31, 2018USD ($)	Mar. 31, 2017USD ($)	Dec. 31, 2016USD ($)market	Dec. 31, 2017USD ($)
Finite-Lived Intangible Assets [Line Items]
Goodwill		$ 836,300			$ 836,970
Indefinite-lived intangible assets		623			31,876
Amortization expense		21,084	$ 23,678
Proceeds from the sale of intangible assets		53,693	0
Amortization expense related to intangible assets		22,700	$ 25,400
Patents		$ 200
Finite-lived intangible assets, remaining amortization period		4 years 6 months 29 days
Spectrum Licenses
Finite-Lived Intangible Assets [Line Items]
Number of mid-sized metropolitan markets | market				40
Lease agreements term				7 years
Intangible assets acquired				$ 31,300
Indefinite-lived intangible assets		$ 0			$ 31,253
Spectrum Leases | Verizon | Spectrum Licenses
Finite-Lived Intangible Assets [Line Items]
Proceeds from the sale of intangible assets	$ 55,000
Extinguishment of liability	(27,900)
Indefinite-lived intangible assets, written off	31,300
Regulatory costs	1,300
Gain on sale	$ 50,400

Goodwill and Intangible Asset53

Goodwill and Intangible Assets - Intangible Assets (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Definite-lived intangible assets, gross	$ 1,006,241	$ 1,007,780
Accumulated amortization	(683,631)	(662,205)
Finite-lived intangible assets	322,610	345,575
Indefinite-lived intangible assets	623	31,876
Total intangible assets, gross	1,006,864	1,039,656
Total intangible assets, net	323,233	377,451
Customer contracts
Finite-Lived Intangible Assets [Line Items]
Definite-lived intangible assets, gross	968,230	970,147
Accumulated amortization	(657,570)	(637,780)
Finite-lived intangible assets	$ 310,660	332,367
Estimated useful lives of intangible asset	10 years
2GIG 2.0 technology
Finite-Lived Intangible Assets [Line Items]
Definite-lived intangible assets, gross	$ 17,000	17,000
Accumulated amortization	(13,779)	(13,274)
Finite-lived intangible assets	$ 3,221	3,726
Estimated useful lives of intangible asset	8 years
Other technology
Finite-Lived Intangible Assets [Line Items]
Definite-lived intangible assets, gross	$ 2,917	2,917
Accumulated amortization	(1,354)	(1,250)
Finite-lived intangible assets	1,563	1,667
Space Monkey technology
Finite-Lived Intangible Assets [Line Items]
Definite-lived intangible assets, gross	7,100	7,100
Accumulated amortization	(4,488)	(4,066)
Finite-lived intangible assets	$ 2,612	3,034
Estimated useful lives of intangible asset	6 years
Patents
Finite-Lived Intangible Assets [Line Items]
Definite-lived intangible assets, gross	$ 10,994	10,616
Accumulated amortization	(6,440)	(5,835)
Finite-lived intangible assets	$ 4,554	4,781
Estimated useful lives of intangible asset	5 years
Minimum
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives of intangible asset	5 years
Minimum | Other technology
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives of intangible asset	5 years
Maximum
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives of intangible asset	10 years
Maximum | Other technology
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives of intangible asset	7 years
Spectrum Licenses
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	$ 0	31,253
IP addresses
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	564	564
Domain names
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	$ 59	$ 59

Goodwill and Intangible Asset54

Goodwill and Intangible Assets - Future Amortization Expense (Detail) $ in Thousands	Mar. 31, 2018USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2018 - Remaining Period	$ 68,108
2,019	78,932
2,020	67,845
2,021	58,691
2,022	48,832
Thereafter	23
Total estimated amortization expense	$ 322,431

Financial Instruments - Valuati

Financial Instruments - Valuation Approach Applied to Each Class of Security (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash	$ 3,467		$ 3,866
Adjusted Cost	6,176		7,890
Unrealized Gains	334		0
Unrealized Losses	0		(1,315)
Fair Value	6,510		6,575
Cash and Cash Equivalents	3,473		3,872
Long-Term Notes Receivables and Other Assets, net	3,037		2,703
Unrealized gain (loss) during period	300	$ 600
Accumulated other comprehensive income	0		(300)
Privately Held Company | Convertible Debt Securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cost method investments	3,000
Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Adjusted Cost	2,709		4,024
Unrealized Gains	334		0
Unrealized Losses	0		(1,315)
Fair Value	3,043		2,709
Cash and Cash Equivalents	6		6
Long-Term Notes Receivables and Other Assets, net	3,037		2,703
Money market funds | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Adjusted Cost	6		6
Unrealized Gains	0		0
Unrealized Losses	0		0
Fair Value	6		6
Cash and Cash Equivalents	6		6
Long-Term Notes Receivables and Other Assets, net	0		0
Corporate securities | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Adjusted Cost	2,703		4,018
Unrealized Gains	334		0
Unrealized Losses	0		(1,315)
Fair Value	3,037		2,703
Cash and Cash Equivalents	0		0
Long-Term Notes Receivables and Other Assets, net	$ 3,037		$ 2,703

Financial Instruments - Debt Fa

Financial Instruments - Debt Fair Value and Carrying Value (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Aug. 31, 2017	May 31, 2016	Oct. 31, 2015	Nov. 16, 2012
Fair Value, Estimate Not Practicable, Financial Statement Captions [Line Items]
Face Value	$ 2,838,380	$ 2,820,297
Outstanding Principal	2,846,465	2,829,465
Level 2
Fair Value, Estimate Not Practicable, Financial Statement Captions [Line Items]
Face Value	2,769,465	2,769,465
Estimated Fair Value	$ 2,830,283	2,893,547
6.375% Senior Secured Notes due 2019
Fair Value, Estimate Not Practicable, Financial Statement Captions [Line Items]
Stated Interest Rate	6.375%
8.75% Senior Notes due 2020
Fair Value, Estimate Not Practicable, Financial Statement Captions [Line Items]
Stated Interest Rate	8.75%
Senior Notes | 6.375% Senior Secured Notes due 2019
Fair Value, Estimate Not Practicable, Financial Statement Captions [Line Items]
Face Value	$ 266,963	266,588
Outstanding Principal	$ 269,465	269,465
Stated Interest Rate	6.375%					6.375%
Senior Notes | 6.375% Senior Secured Notes due 2019 | Level 2
Fair Value, Estimate Not Practicable, Financial Statement Captions [Line Items]
Face Value	$ 269,465	269,465
Estimated Fair Value	270,220	273,507
Senior Notes | 8.75% Senior Notes due 2020
Fair Value, Estimate Not Practicable, Financial Statement Captions [Line Items]
Face Value	923,874	923,256
Outstanding Principal	$ 930,000	930,000
Stated Interest Rate	8.75%					8.75%
Senior Notes | 8.75% Senior Notes due 2020 | Level 2
Fair Value, Estimate Not Practicable, Financial Statement Captions [Line Items]
Face Value	$ 930,000	930,000
Estimated Fair Value	937,719	952,134
Senior Notes | 8.875% Senior Secured Notes Due 2022
Fair Value, Estimate Not Practicable, Financial Statement Captions [Line Items]
Face Value	266,833	266,689
Outstanding Principal	$ 270,000	270,000
Stated Interest Rate	8.875%				8.875%
Senior Notes | 8.875% Senior Secured Notes Due 2022 | Level 2
Fair Value, Estimate Not Practicable, Financial Statement Captions [Line Items]
Face Value	$ 270,000	270,000
Estimated Fair Value	273,964	276,486
Senior Notes | 7.875% Senior Secured Notes Due 2022
Fair Value, Estimate Not Practicable, Financial Statement Captions [Line Items]
Face Value	908,262	908,526
Outstanding Principal	$ 900,000	900,000
Stated Interest Rate	7.875%			7.875%
Senior Notes | 7.875% Senior Secured Notes Due 2022 | Level 2
Fair Value, Estimate Not Practicable, Financial Statement Captions [Line Items]
Face Value	$ 900,000	900,000
Estimated Fair Value	934,380	966,420
Senior Notes | 7.625% Senior Notes Due 2023
Fair Value, Estimate Not Practicable, Financial Statement Captions [Line Items]
Face Value	395,448	395,238
Outstanding Principal	$ 400,000	400,000
Stated Interest Rate	7.625%		7.625%
Senior Notes | 7.625% Senior Notes Due 2023 | Level 2
Fair Value, Estimate Not Practicable, Financial Statement Captions [Line Items]
Face Value	$ 400,000	400,000
Estimated Fair Value	$ 414,000	$ 425,000

Financial Instruments - Derivat

Financial Instruments - Derivative Fair Value (Details) - Level 2 - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Derivatives, Fair Value [Line Items]
Fair value	$ 54,015	$ 46,496
Notional amount	189,225	163,032
Accrued expenses and other current liabilities
Derivatives, Fair Value [Line Items]
Fair value	30,061	25,473
Other long-term obligations
Derivatives, Fair Value [Line Items]
Fair value	$ 23,954	$ 21,023

Financial Instruments - Level 3

Financial Instruments - Level 3 (Details) - Fair Value, Inputs, Level 3 - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Balance, beginning of period	$ 46,496	$ 0
Additions	10,487	44,913
Settlements	(6,505)	(7,972)
Losses included in earnings	3,537	9,555
Balance, end of period	$ 54,015	$ 46,496

Income Taxes (Detail)

Income Taxes (Detail)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Income Tax Disclosure [Abstract]
Effective income tax rate	0.70%	(0.53%)

Stock-Based Compensation and 60

Stock-Based Compensation and Equity - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2018	Mar. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation		$ 204	$ 427
Proceeds from capital contribution		$ 0
Incentive Units | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility		55.00%
Expected exercise term		3 years 11 months 16 days
Risk-free rate		0.62%
Incentive Units | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility		125.00%
Expected exercise term		6 years
Risk-free rate		1.18%
Incentive Units Time Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation awards, description		The Incentive Units are subject to time-based and performance-based vesting conditions, with one-third subject to ratable time-based vesting over a five year period and two-thirds subject to the achievement of certain investment return thresholds by The Blackstone Group, L.P. and its affiliates
Stock appreciation rights ("SARs"), vesting period		5 years
Stock compensation award, method of measurement		Monte Carlo simulation valuation approach
Incentive Units Time Based Awards | Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock compensation award, vesting percentage		33.33%
Incentive Units Time Based Awards | Senior Management and Board Member
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Incentive units issued as share-based compensation awards		85,362,836
Incentive Units Time Based Awards | Chief Executive Officer and President
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Incentive units relinquished	4,315,106
Incentive units issued as share-based compensation awards, outstanding		42,169,456
Incentive Units Performance Based Awards | Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock compensation award, vesting percentage		66.67%
Stock Appreciation Rights (SARs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock compensation award, method of measurement		Black-Scholes option valuation model
Shares reserved for issuance		53,621,891
Vivint | Stock Appreciation Rights (SARs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Incentive units issued as share-based compensation awards, outstanding		31,512,793
Share-based compensation awards, description		The SARs are subject to time-based and performance-based vesting conditions, with one-third subject to ratable time-based vesting over a five year period and two-thirds subject to the achievement of certain investment return thresholds by 313.
Expected dividends		0.00%
Vivint | Stock Appreciation Rights (SARs) | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility		55.00%
Expected exercise term		6 years
Risk-free rate		0.61%
Vivint | Stock Appreciation Rights (SARs) | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility		125.00%
Expected exercise term		6 years 5 months 20 days
Risk-free rate		1.77%
Vivint | Stock Appreciation Rights Time Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock appreciation rights ("SARs"), vesting period		5 years
Vivint | Stock Appreciation Rights Time Based Awards | Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock compensation award, vesting percentage		33.33%
Vivint | Stock Appreciation Rights Performance Based Awards | Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock compensation award, vesting percentage		66.67%
Vivint Wireless | Stock Appreciation Rights (SARs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Incentive units issued as share-based compensation awards, outstanding		10,000
Stock appreciation rights ("SARs"), vesting period		5 years
Expected volatility		65.00%
Expected dividends		0.00%
Vivint Wireless | Stock Appreciation Rights (SARs) | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected exercise term		6 years
Risk-free rate		1.51%
Vivint Wireless | Stock Appreciation Rights (SARs) | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected exercise term		6 years 6 months
Risk-free rate		1.77%
313 Acquisition LLC
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation			$ 2,200

Stock-Based Compensation and 61

Stock-Based Compensation and Equity - Stock-Based Compensation Expense (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation	$ 204	$ 427
Operating expenses
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation	18	19
Selling expenses
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation	45	54
General and administrative expenses
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation	$ 141	$ 354

Commitments and Contingencies62

Commitments and Contingencies (Detail) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2018USD ($)	Mar. 31, 2017USD ($)	Dec. 31, 2016market	Dec. 31, 2017USD ($)
Commitments And Contingencies [Line Items]
Loss contingency accrual	$ 2,400			$ 2,200
Rent Expense	4,348	$ 4,117
Capital lease obligation	21,700			21,700
Property plant and equipment, gross	146,357			139,211
Capital lease obligations, net of current portion	11,065			11,089
Property, plant and equipment, net	79,644			78,081
Accumulated amortization	$ 66,713			61,130
Vehicles
Commitments And Contingencies [Line Items]
Lease agreements term	36 months
Average remaining life for fleet	17 months
Property plant and equipment, gross	$ 46,405			42,008
Build-to-suit lease building
Commitments And Contingencies [Line Items]
Property plant and equipment, gross	8,268			8,268
Accumulated amortization	600			$ 300
Warehouse, office space and other
Commitments And Contingencies [Line Items]
Rent Expense	$ 3,304	2,935
Warehouse, office space and other | Minimum
Commitments And Contingencies [Line Items]
Lease Term	11 years
Warehouse, office space and other | Maximum
Commitments And Contingencies [Line Items]
Lease Term	15 years
Wireless towers and spectrum
Commitments And Contingencies [Line Items]
Rent Expense	$ 1,044	$ 1,182
Wireless towers and spectrum | Minimum
Commitments And Contingencies [Line Items]
Lease Term	1 year
Wireless towers and spectrum | Maximum
Commitments And Contingencies [Line Items]
Lease Term	10 years
Spectrum Licenses
Commitments And Contingencies [Line Items]
Number of mid-sized metropolitan markets | market			40

Related Party Transactions (Det

Related Party Transactions (Detail) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017	Jan. 01, 2018	Feb. 28, 2017
Related Party Transaction [Line Items]
Amounts due from employees	$ 300,000		$ 300,000
Prepaid expenses and other current assets	17,155,000		16,150,000
Additional expenses incurred for other related-party transactions	600,000	$ 300,000
Accrued expenses and other current liabilities	124,344,000		74,321,000	$ 84,650,000
Additions	0	8,951,000
Proceeds from capital contribution	0
Deferred financing costs	33,266,000		35,667,000
Vivint
Related Party Transaction [Line Items]
Accrued expenses and other current liabilities	400,000		1,400,000
Affiliated Entity
Related Party Transaction [Line Items]
Expenses related to agreement	1,200,000	1,200,000
Accrued expenses and other current liabilities	1,900,000
Affiliated Entity | Minimum
Related Party Transaction [Line Items]
Annual monitoring base fee, minimum	2,700,000
Personal Use of Corporate Jet
Related Party Transaction [Line Items]
Prepaid expenses and other current assets	400,000		500,000
7.875% Senior Secured Notes Due 2022 | Senior Notes
Related Party Transaction [Line Items]
Deferred financing costs	$ 15,250,000		16,067,000
Blackstone Advisory Partners L.P. | Affiliated Entity
Related Party Transaction [Line Items]
Deferred financing costs					$ 200,000
Blackstone Management Partners L.L.C. | Affiliated Entity
Related Party Transaction [Line Items]
Payment of annual monitoring fee description	Company agreed to pay an annual monitoring fee equal to the greater of (i) a minimum base fee of $2.7 million subject to adjustments if the Company engages in a business combination or disposition that is deemed significant and (ii) the amount of the monitoring fee paid in respect of the immediately preceding fiscal year, without regard to any post-fiscal year "true-up" adjustments as determined by the agreement.
Blackstone Management Partners L.L.C. | Blackstone Management Partners LLC Support and Services Agreement | Affiliated Entity
Related Party Transaction [Line Items]
Expenses related to agreement	$ 0	0
Maximum advisory fee obligation	1,500,000
Solar | Affiliated Entity
Related Party Transaction [Line Items]
Sublease and other administrative expenses	1,000,000	$ 500,000
Other expenses	$ 500,000		$ 200,000

Employee Benefit Plan (Detail)

Employee Benefit Plan (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Postemployment Benefits [Abstract]
Employer matching contribution, percent of employees' gross pay	1.00%
Employer matching contribution, amount for every employees' dollar contributed	$ 0.50
Employer matching contribution, percent of employees' gross pay for 50% matching for every dollar contributed	5.00%
Maximum annual contributions per employee, percent	3.50%
Matching contributions to the plan	$ 1,600,000	$ 0

Restructuring and Asset Impai65

Restructuring and Asset Impairment Charges (Detail) - Contract termination costs - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Restructuring Reserve [Roll Forward]
Accrued restructuring, beginning balance	$ 558	$ 649
Cash payments	(23)	(91)
Accrued restructuring, ending balance	$ 535	$ 558

Segment Reporting and Busines66

Segment Reporting and Business Concentrations (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2018USD ($)regionsegment	Mar. 31, 2017USD ($)segment
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of operating segments | segment	1	1
Number of geographic regions | region	2
Revenue from external customers	$ 246,597	$ 205,353
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue from external customers	228,542	190,030
Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue from external customers	$ 18,055	$ 15,323

Guarantor and Non-Guarantor S67

Guarantor and Non-Guarantor Supplemental Financial Information - Balance Sheet (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
ASSETS
Current assets	$ 171,316		$ 175,965
Property, plant and equipment, net	79,644		78,081
Capitalized contract costs, net	1,008,325	$ 1,020,408	0
Subscriber acquisition costs, net	0	0	1,308,558
Deferred financing costs, net	2,839		3,099
Investment in subsidiaries	0		0
Intercompany receivable	0		0
Intangible assets, net	323,233		377,451
Goodwill	836,300		836,970
Long-term notes receivables and other assets	97,638	91,436	88,723
Total assets	2,519,295		2,868,847
LIABILITIES AND STOCKHOLDERS’ DEFICIT
Current liabilities	391,446		338,371
Intercompany payable	0		0
Notes payable and revolving credit facility, net of current portion	2,838,380		2,820,297
Capital lease obligations, net of current portion	11,065		11,089
Deferred revenue, net of current portion	229,978	$ 211,493	264,555
Other long-term obligations	61,842		79,020
Accumulated losses of investee, net	0		0
Deferred income tax liability	8,819		9,041
Total stockholders’ deficit	(1,022,235)		(653,526)
Total liabilities and stockholders’ deficit	2,519,295		2,868,847
Eliminations
ASSETS
Current assets	(187,398)		(162,413)
Property, plant and equipment, net	0		0
Capitalized contract costs, net	0
Subscriber acquisition costs, net			0
Deferred financing costs, net	0		0
Investment in subsidiaries	(1,877,486)		(2,188,221)
Intercompany receivable	(6,303)		(6,303)
Intangible assets, net	0		0
Goodwill	0		0
Long-term notes receivables and other assets	(106)		(106)
Total assets	(2,071,293)		(2,357,043)
LIABILITIES AND STOCKHOLDERS’ DEFICIT
Current liabilities	(187,398)		(162,413)
Intercompany payable	(6,303)		(6,303)
Notes payable and revolving credit facility, net of current portion	0		0
Capital lease obligations, net of current portion	0		0
Deferred revenue, net of current portion	0		0
Other long-term obligations	0		0
Accumulated losses of investee, net	(1,022,235)		(653,526)
Deferred income tax liability	(106)		(106)
Total stockholders’ deficit	(855,251)		(1,534,695)
Total liabilities and stockholders’ deficit	(2,071,293)		(2,357,043)
Parent | Reportable Legal Entities
ASSETS
Current assets	0		0
Property, plant and equipment, net	0		0
Capitalized contract costs, net	0
Subscriber acquisition costs, net			0
Deferred financing costs, net	0		0
Investment in subsidiaries	0		0
Intercompany receivable	0		0
Intangible assets, net	0		0
Goodwill	0		0
Long-term notes receivables and other assets	0		0
Total assets	0		0
LIABILITIES AND STOCKHOLDERS’ DEFICIT
Current liabilities	0		0
Intercompany payable	0		0
Notes payable and revolving credit facility, net of current portion	0		0
Capital lease obligations, net of current portion	0		0
Deferred revenue, net of current portion	0		0
Other long-term obligations	0		0
Accumulated losses of investee, net	1,022,235		653,526
Deferred income tax liability	0		0
Total stockholders’ deficit	(1,022,235)		(653,526)
Total liabilities and stockholders’ deficit	0		0
APX Group, Inc. | Reportable Legal Entities
ASSETS
Current assets	3,679		4,150
Property, plant and equipment, net	0		0
Capitalized contract costs, net	0
Subscriber acquisition costs, net			0
Deferred financing costs, net	2,839		3,099
Investment in subsidiaries	1,877,486		2,188,221
Intercompany receivable	0		0
Intangible assets, net	0		0
Goodwill	0		0
Long-term notes receivables and other assets	106		106
Total assets	1,884,110		2,195,576
LIABILITIES AND STOCKHOLDERS’ DEFICIT
Current liabilities	67,965		28,805
Intercompany payable	0		0
Notes payable and revolving credit facility, net of current portion	2,838,380		2,820,297
Capital lease obligations, net of current portion	0		0
Deferred revenue, net of current portion	0		0
Other long-term obligations	0		0
Accumulated losses of investee, net
Deferred income tax liability	0		0
Total stockholders’ deficit	(1,022,235)		(653,526)
Total liabilities and stockholders’ deficit	1,884,110		2,195,576
Guarantor Subsidiaries | Reportable Legal Entities
ASSETS
Current assets	290,690		284,293
Property, plant and equipment, net	78,995		77,345
Capitalized contract costs, net	941,337
Subscriber acquisition costs, net			1,214,678
Deferred financing costs, net	0		0
Investment in subsidiaries	0		0
Intercompany receivable	6,303		6,303
Intangible assets, net	298,803		350,710
Goodwill	809,678		809,678
Long-term notes receivables and other assets	87,029		78,173
Total assets	2,512,835		2,821,180
LIABILITIES AND STOCKHOLDERS’ DEFICIT
Current liabilities	370,099		343,398
Intercompany payable	0		0
Notes payable and revolving credit facility, net of current portion	0		0
Capital lease obligations, net of current portion	10,873		10,791
Deferred revenue, net of current portion	217,757		248,643
Other long-term obligations	61,842		79,020
Accumulated losses of investee, net
Deferred income tax liability	106		106
Total stockholders’ deficit	1,852,158		2,139,222
Total liabilities and stockholders’ deficit	2,512,835		2,821,180
Non-Guarantor Subsidiaries | Reportable Legal Entities
ASSETS
Current assets	64,345		49,935
Property, plant and equipment, net	649		736
Capitalized contract costs, net	66,988
Subscriber acquisition costs, net			93,880
Deferred financing costs, net	0		0
Investment in subsidiaries	0		0
Intercompany receivable	0		0
Intangible assets, net	24,430		26,741
Goodwill	26,622		27,292
Long-term notes receivables and other assets	10,609		10,550
Total assets	193,643		209,134
LIABILITIES AND STOCKHOLDERS’ DEFICIT
Current liabilities	140,780		128,581
Intercompany payable	6,303		6,303
Notes payable and revolving credit facility, net of current portion	0		0
Capital lease obligations, net of current portion	192		298
Deferred revenue, net of current portion	12,221		15,912
Other long-term obligations	0		0
Accumulated losses of investee, net
Deferred income tax liability	8,819		9,041
Total stockholders’ deficit	25,328		48,999
Total liabilities and stockholders’ deficit	$ 193,643		$ 209,134

Guarantor and Non-Guarantor S68

Guarantor and Non-Guarantor Supplemental Financial Information - Statements of Operations and Comprehensive (Loss) Income (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Condensed Income Statements, Captions [Line Items]
Revenues	$ 246,597	$ 205,353
Costs and expenses	318,228	221,880
Loss from operations	(71,631)	(16,527)
Loss from subsidiaries	0	0
Other expense (income), net	13,519	65,690
Loss before income taxes	(85,150)	(82,217)
Income tax (benefit) expense	(433)	419
Net loss	(84,717)	(82,636)
Other comprehensive (loss) income, net of tax effects:
Net loss	(84,717)	(82,636)
Foreign currency translation adjustment	(659)	412
Unrealized gain on marketable securities	0	143
Total other comprehensive (loss) income	(659)	555
Comprehensive loss	(85,376)	(82,081)
Eliminations
Condensed Income Statements, Captions [Line Items]
Revenues	(656)	(675)
Costs and expenses	(656)	(675)
Loss from operations	0	0
Loss from subsidiaries	111,037	99,845
Other expense (income), net	0	0
Loss before income taxes	111,037	99,845
Income tax (benefit) expense	0	0
Net loss	111,037	99,845
Other comprehensive (loss) income, net of tax effects:
Net loss	111,037	99,845
Foreign currency translation adjustment	1,318	(411)
Unrealized gain on marketable securities		(143)
Total other comprehensive (loss) income	1,318	(554)
Comprehensive loss	112,355	99,291
Parent | Reportable Legal Entities
Condensed Income Statements, Captions [Line Items]
Revenues	0	0
Costs and expenses	0	0
Loss from operations	0	0
Loss from subsidiaries	(84,717)	(82,636)
Other expense (income), net	0	0
Loss before income taxes	(84,717)	(82,636)
Income tax (benefit) expense	0	0
Net loss	(84,717)	(82,636)
Other comprehensive (loss) income, net of tax effects:
Net loss	(84,717)	(82,636)
Foreign currency translation adjustment	(659)	0
Unrealized gain on marketable securities		0
Total other comprehensive (loss) income	(659)	0
Comprehensive loss	(85,376)	(82,636)
APX Group, Inc. | Reportable Legal Entities
Condensed Income Statements, Captions [Line Items]
Revenues	0	0
Costs and expenses	0	0
Loss from operations	0	0
Loss from subsidiaries	(26,320)	(17,209)
Other expense (income), net	58,397	65,427
Loss before income taxes	(84,717)	(82,636)
Income tax (benefit) expense	0	0
Net loss	(84,717)	(82,636)
Other comprehensive (loss) income, net of tax effects:
Net loss	(84,717)	(82,636)
Foreign currency translation adjustment	(659)	412
Unrealized gain on marketable securities		143
Total other comprehensive (loss) income	(659)	555
Comprehensive loss	(85,376)	(82,081)
Guarantor Subsidiaries | Reportable Legal Entities
Condensed Income Statements, Captions [Line Items]
Revenues	233,788	193,968
Costs and expenses	305,221	212,741
Loss from operations	(71,433)	(18,773)
Loss from subsidiaries	0	0
Other expense (income), net	(46,970)	938
Loss before income taxes	(24,463)	(19,711)
Income tax (benefit) expense	172	(362)
Net loss	(24,635)	(19,349)
Other comprehensive (loss) income, net of tax effects:
Net loss	(24,635)	(19,349)
Foreign currency translation adjustment	0	0
Unrealized gain on marketable securities		143
Total other comprehensive (loss) income	0	143
Comprehensive loss	(24,635)	(19,206)
Non-Guarantor Subsidiaries | Reportable Legal Entities
Condensed Income Statements, Captions [Line Items]
Revenues	13,465	12,060
Costs and expenses	13,663	9,814
Loss from operations	(198)	2,246
Loss from subsidiaries	0	0
Other expense (income), net	2,092	(675)
Loss before income taxes	(2,290)	2,921
Income tax (benefit) expense	(605)	781
Net loss	(1,685)	2,140
Other comprehensive (loss) income, net of tax effects:
Net loss	(1,685)	2,140
Foreign currency translation adjustment	(659)	411
Unrealized gain on marketable securities		0
Total other comprehensive (loss) income	(659)	411
Comprehensive loss	$ (2,344)	$ 2,551

Guarantor and Non-Guarantor S69

Guarantor and Non-Guarantor Supplemental Financial Information - Cash Flows (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash flows from operating activities:
Net cash provided by (used in) operating activities	$ (59,582)	$ (6,153)
Cash flows from investing activities:
Subscriber acquisition costs – company owned equipment	0
Capital expenditures	(6,407)	(7,526)
Proceeds from the sale of intangible assets	53,693	0
Investment in subsidiary	0	0
Proceeds from the sale of capital assets	149	239
Acquisition of intangible assets	(849)	(623)
Acquisition of other assets	0	(126)
Net cash provided by (used in) investing activities	46,586	(8,036)
Cash flows from financing activities:
Proceeds from notes payable	0	324,750
Repayment of notes payable	0	(300,000)
Borrowings from revolving credit facility	57,000	0
Repayments on revolving credit facility	(40,000)	0
Proceeds from capital contribution	0
Intercompany receivable	0	0
Intercompany payable	0	0
Repayments of capital lease obligations	(3,418)	(2,361)
Financing costs	0	(8,951)
Deferred financing costs	0	(5,537)
Return of capital	(966)	0
Net cash (used in) provided by financing activities	12,616	7,901
Effect of exchange rate changes on cash	(19)	(7)
Net increase (decrease) in cash and cash equivalents	(399)	(6,295)
Cash and cash equivalents:
Beginning of period	3,872	43,520
End of period	3,473	37,225
Eliminations
Cash flows from operating activities:
Net cash provided by (used in) operating activities	0	0
Cash flows from investing activities:
Subscriber acquisition costs – company owned equipment	0
Capital expenditures	0	0
Proceeds from the sale of intangible assets	0
Investment in subsidiary	15,484	(5,202)
Proceeds from the sale of capital assets	0	0
Acquisition of intangible assets	0	0
Acquisition of other assets		0
Net cash provided by (used in) investing activities	15,484	(5,202)
Cash flows from financing activities:
Proceeds from notes payable		0
Repayment of notes payable		0
Borrowings from revolving credit facility	0
Repayments on revolving credit facility	0
Proceeds from capital contribution	(17,416)
Intercompany receivable	0	(3,189)
Intercompany payable	0	8,391
Repayments of capital lease obligations	0	0
Financing costs		0
Deferred financing costs		0
Return of capital	1,932
Net cash (used in) provided by financing activities	(15,484)	5,202
Effect of exchange rate changes on cash	0	0
Net increase (decrease) in cash and cash equivalents	0	0
Cash and cash equivalents:
Beginning of period	0	0
End of period	0	0
Parent | Reportable Legal Entities
Cash flows from operating activities:
Net cash provided by (used in) operating activities	0	0
Cash flows from investing activities:
Subscriber acquisition costs – company owned equipment	0
Capital expenditures	0	0
Proceeds from the sale of intangible assets	0
Investment in subsidiary	966	0
Proceeds from the sale of capital assets	0	0
Acquisition of intangible assets	0	0
Acquisition of other assets		0
Net cash provided by (used in) investing activities	966	0
Cash flows from financing activities:
Proceeds from notes payable		0
Repayment of notes payable		0
Borrowings from revolving credit facility	0
Repayments on revolving credit facility	0
Proceeds from capital contribution	0
Intercompany receivable	0	0
Intercompany payable	0	0
Repayments of capital lease obligations	0	0
Financing costs		0
Deferred financing costs		0
Return of capital	(966)
Net cash (used in) provided by financing activities	(966)	0
Effect of exchange rate changes on cash	0	0
Net increase (decrease) in cash and cash equivalents	0	0
Cash and cash equivalents:
Beginning of period	0	0
End of period	0	0
APX Group, Inc. | Reportable Legal Entities
Cash flows from operating activities:
Net cash provided by (used in) operating activities	0	0
Cash flows from investing activities:
Subscriber acquisition costs – company owned equipment	0
Capital expenditures	0	0
Proceeds from the sale of intangible assets	0
Investment in subsidiary	(16,450)	5,202
Proceeds from the sale of capital assets	0	0
Acquisition of intangible assets	0	0
Acquisition of other assets		0
Net cash provided by (used in) investing activities	(16,450)	5,202
Cash flows from financing activities:
Proceeds from notes payable		324,750
Repayment of notes payable		(300,000)
Borrowings from revolving credit facility	57,000
Repayments on revolving credit facility	(40,000)
Proceeds from capital contribution	0
Intercompany receivable	0	0
Intercompany payable	0	0
Repayments of capital lease obligations	0	0
Financing costs		(8,951)
Deferred financing costs		(5,537)
Return of capital	(966)
Net cash (used in) provided by financing activities	16,034	10,262
Effect of exchange rate changes on cash	0	0
Net increase (decrease) in cash and cash equivalents	(416)	15,464
Cash and cash equivalents:
Beginning of period	3,661	24,680
End of period	3,245	40,144
Guarantor Subsidiaries | Reportable Legal Entities
Cash flows from operating activities:
Net cash provided by (used in) operating activities	(59,159)	(9,747)
Cash flows from investing activities:
Subscriber acquisition costs – company owned equipment	0
Capital expenditures	(6,407)	(7,526)
Proceeds from the sale of intangible assets	53,693
Investment in subsidiary	0	0
Proceeds from the sale of capital assets	149	239
Acquisition of intangible assets	(849)	(623)
Acquisition of other assets		(126)
Net cash provided by (used in) investing activities	46,586	(8,036)
Cash flows from financing activities:
Proceeds from notes payable		0
Repayment of notes payable		0
Borrowings from revolving credit facility	0
Repayments on revolving credit facility	0
Proceeds from capital contribution	17,416
Intercompany receivable	0	3,189
Intercompany payable	0	(5,202)
Repayments of capital lease obligations	(3,305)	(2,275)
Financing costs		0
Deferred financing costs		0
Return of capital	(966)
Net cash (used in) provided by financing activities	13,145	(4,288)
Effect of exchange rate changes on cash	0	0
Net increase (decrease) in cash and cash equivalents	572	(22,071)
Cash and cash equivalents:
Beginning of period	(572)	18,186
End of period	0	(3,885)
Non-Guarantor Subsidiaries | Reportable Legal Entities
Cash flows from operating activities:
Net cash provided by (used in) operating activities	(423)	3,594
Cash flows from investing activities:
Subscriber acquisition costs – company owned equipment	0
Capital expenditures	0	0
Proceeds from the sale of intangible assets	0
Investment in subsidiary	0	0
Proceeds from the sale of capital assets	0	0
Acquisition of intangible assets	0	0
Acquisition of other assets		0
Net cash provided by (used in) investing activities	0	0
Cash flows from financing activities:
Proceeds from notes payable		0
Repayment of notes payable		0
Borrowings from revolving credit facility	0
Repayments on revolving credit facility	0
Proceeds from capital contribution	0
Intercompany receivable	0	0
Intercompany payable	0	(3,189)
Repayments of capital lease obligations	(113)	(86)
Financing costs		0
Deferred financing costs		0
Return of capital	0
Net cash (used in) provided by financing activities	(113)	(3,275)
Effect of exchange rate changes on cash	(19)	(7)
Net increase (decrease) in cash and cash equivalents	(555)	312
Cash and cash equivalents:
Beginning of period	783	654
End of period	$ 228	$ 966